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data-latex='x%5Ccdot(y_B-y_A)-x_A%5Ccdot(y_B-y_A)+y_A%5Ccdot(x_B-x_A)' data-mml-node='mrow' data-semantic-annotation='depth:3' data-semantic-attributes='latex:x%5Ccdot(y_B-y_A)-x_A%5Ccdot(y_B-y_A)+y_A%5Ccdot(x_B-x_A)' data-semantic-children='48,51' data-semantic-content='27' data-semantic-id='50' data-semantic-owns='48 27 51' data-semantic-parent='60' data-semantic-role='addition' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='3' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:4' data-semantic-children='47,49' data-semantic-content='13' data-semantic-id='48' data-semantic-owns='47 13 49' data-semantic-parent='50' data-semantic-role='subtraction' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='4' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:5' data-semantic-children='2,42' data-semantic-content='3' data-semantic-id='47' data-semantic-owns='2 3 42' data-semantic-parent='48' data-semantic-role='multiplication' data-semantic-type='infixop' data-speech-node='true'%3E%3Cuse xlink:href='%23c' aria-level='5' data-c='1D465' data-latex='x' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;nemeth:number;depth:6' data-semantic-attributes='latex:x' data-semantic-font='italic' data-semantic-id='2' data-semantic-parent='47' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 2043.6 -708)'/%3E%3Cuse xlink:href='%23d' aria-level='5' data-c='22C5' data-latex='%5Ccdot' data-mml-node='mo' data-semantic-annotation='depth:6' data-semantic-attributes='latex:%5Ccdot' data-semantic-id='3' data-semantic-operator='infixop,⋅' data-semantic-parent='47' data-semantic-role='multiplication' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 2837.8 -708)'/%3E%3Cg aria-level='5' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:6' data-semantic-children='41' data-semantic-content='4,12' data-semantic-id='42' data-semantic-owns='4 41 12' data-semantic-parent='47' data-semantic-role='leftright' data-semantic-type='fenced' data-speech-node='true'%3E%3Cuse xlink:href='%23e' aria-level='6' data-c='28' data-latex='(' data-mml-node='mo' data-semantic-annotation='depth:7' data-semantic-attributes='latex:(' data-semantic-id='4' data-semantic-operator='fenced' data-semantic-parent='42' data-semantic-role='open' data-semantic-type='fence' data-speech-node='true' transform='matrix(1 0 0 -1 3338 -708)'/%3E%3Cg aria-level='6' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:7' data-semantic-children='7,11' data-semantic-content='8' data-semantic-id='41' data-semantic-owns='7 8 11' data-semantic-parent='42' data-semantic-role='subtraction' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='7' data-latex='y_B' data-mml-node='msub' data-semantic-annotation='depth:8' data-semantic-attributes='latex:y_B' data-semantic-children='5,6' data-semantic-id='7' data-semantic-owns='5 6' data-semantic-parent='41' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23a' aria-level='8' data-c='1D466' data-latex='y' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:y' data-semantic-font='italic' data-semantic-id='5' data-semantic-parent='7' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 3727 -708)'/%3E%3Cuse xlink:href='%23f' aria-level='8' data-c='1D435' data-latex='B' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:B' data-semantic-font='italic' data-semantic-id='6' data-semantic-parent='7' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 4250 -558)'/%3E%3C/g%3E%3Cuse xlink:href='%23g' aria-level='7' data-c='2212' data-latex='-' data-mml-node='mo' data-semantic-annotation='depth:8' data-semantic-attributes='latex:-' data-semantic-id='8' data-semantic-operator='infixop,−' data-semantic-parent='41' data-semantic-role='subtraction' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 5058.9 -708)'/%3E%3Cg aria-level='7' data-latex='y_A' data-mml-node='msub' data-semantic-annotation='depth:8' data-semantic-attributes='latex:y_A' data-semantic-children='9,10' data-semantic-id='11' data-semantic-owns='9 10' data-semantic-parent='41' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23a' aria-level='8' data-c='1D466' data-latex='y' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:y' data-semantic-font='italic' data-semantic-id='9' data-semantic-parent='11' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 6059.1 -708)'/%3E%3Cuse xlink:href='%23h' aria-level='8' data-c='1D434' data-latex='A' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:A' data-semantic-font='italic' data-semantic-id='10' data-semantic-parent='11' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 6582.1 -555.3)'/%3E%3C/g%3E%3C/g%3E%3Cuse xlink:href='%23i' aria-level='6' data-c='29' data-latex=')' data-mml-node='mo' data-semantic-annotation='depth:7' data-semantic-attributes='latex:)' data-semantic-id='12' data-semantic-operator='fenced' data-semantic-parent='42' data-semantic-role='close' data-semantic-type='fence' data-speech-node='true' transform='matrix(1 0 0 -1 7162.5 -708)'/%3E%3C/g%3E%3C/g%3E%3Cuse xlink:href='%23g' aria-level='4' data-c='2212' data-latex='-' data-mml-node='mo' data-semantic-annotation='depth:5' data-semantic-attributes='latex:-' data-semantic-id='13' data-semantic-operator='infixop,−' data-semantic-parent='48' data-semantic-role='subtraction' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 7773.7 -708)'/%3E%3Cg aria-level='4' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:5' data-semantic-children='16,44' data-semantic-content='17' data-semantic-id='49' data-semantic-owns='16 17 44' data-semantic-parent='48' data-semantic-role='multiplication' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='5' data-latex='x_A' data-mml-node='msub' data-semantic-annotation='depth:6' data-semantic-attributes='latex:x_A' data-semantic-children='14,15' data-semantic-id='16' data-semantic-owns='14 15' data-semantic-parent='49' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23c' aria-level='6' data-c='1D465' data-latex='x' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:7' data-semantic-attributes='latex:x' data-semantic-font='italic' data-semantic-id='14' data-semantic-parent='16' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 8774 -708)'/%3E%3Cuse xlink:href='%23h' aria-level='6' data-c='1D434' data-latex='A' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:7' data-semantic-attributes='latex:A' data-semantic-font='italic' data-semantic-id='15' data-semantic-parent='16' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 9379 -555.3)'/%3E%3C/g%3E%3Cuse xlink:href='%23d' aria-level='5' data-c='22C5' data-latex='%5Ccdot' data-mml-node='mo' data-semantic-annotation='depth:6' data-semantic-attributes='latex:%5Ccdot' data-semantic-id='17' data-semantic-operator='infixop,⋅' data-semantic-parent='49' data-semantic-role='multiplication' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 10181.6 -708)'/%3E%3Cg aria-level='5' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:6' data-semantic-children='43' data-semantic-content='18,26' data-semantic-id='44' data-semantic-owns='18 43 26' data-semantic-parent='49' data-semantic-role='leftright' data-semantic-type='fenced' data-speech-node='true'%3E%3Cuse xlink:href='%23e' aria-level='6' data-c='28' data-latex='(' data-mml-node='mo' data-semantic-annotation='depth:7' data-semantic-attributes='latex:(' data-semantic-id='18' data-semantic-operator='fenced' data-semantic-parent='44' data-semantic-role='open' data-semantic-type='fence' data-speech-node='true' transform='matrix(1 0 0 -1 10681.8 -708)'/%3E%3Cg aria-level='6' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:7' data-semantic-children='21,25' data-semantic-content='22' data-semantic-id='43' data-semantic-owns='21 22 25' data-semantic-parent='44' data-semantic-role='subtraction' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='7' data-latex='y_B' data-mml-node='msub' data-semantic-annotation='depth:8' data-semantic-attributes='latex:y_B' data-semantic-children='19,20' data-semantic-id='21' data-semantic-owns='19 20' data-semantic-parent='43' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23a' aria-level='8' data-c='1D466' data-latex='y' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:y' data-semantic-font='italic' data-semantic-id='19' data-semantic-parent='21' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 11070.8 -708)'/%3E%3Cuse xlink:href='%23f' aria-level='8' data-c='1D435' data-latex='B' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:B' data-semantic-font='italic' data-semantic-id='20' data-semantic-parent='21' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 11593.8 -558)'/%3E%3C/g%3E%3Cuse xlink:href='%23g' aria-level='7' data-c='2212' data-latex='-' data-mml-node='mo' data-semantic-annotation='depth:8' data-semantic-attributes='latex:-' data-semantic-id='22' data-semantic-operator='infixop,−' data-semantic-parent='43' data-semantic-role='subtraction' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 12402.7 -708)'/%3E%3Cg aria-level='7' data-latex='y_A' data-mml-node='msub' data-semantic-annotation='depth:8' data-semantic-attributes='latex:y_A' data-semantic-children='23,24' data-semantic-id='25' data-semantic-owns='23 24' data-semantic-parent='43' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23a' aria-level='8' data-c='1D466' data-latex='y' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:y' data-semantic-font='italic' data-semantic-id='23' data-semantic-parent='25' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 13402.9 -708)'/%3E%3Cuse xlink:href='%23h' aria-level='8' data-c='1D434' data-latex='A' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:9' data-semantic-attributes='latex:A' data-semantic-font='italic' data-semantic-id='24' data-semantic-parent='25' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 13925.9 -555.3)'/%3E%3C/g%3E%3C/g%3E%3Cuse xlink:href='%23i' aria-level='6' data-c='29' data-latex=')' data-mml-node='mo' data-semantic-annotation='depth:7' data-semantic-attributes='latex:)' data-semantic-id='26' data-semantic-operator='fenced' data-semantic-parent='44' data-semantic-role='close' data-semantic-type='fence' data-speech-node='true' transform='matrix(1 0 0 -1 14506.3 -708)'/%3E%3C/g%3E%3C/g%3E%3C/g%3E%3Cuse xlink:href='%23j' aria-level='3' data-c='2B' data-latex='+' data-mml-node='mo' data-semantic-annotation='depth:4' data-semantic-attributes='latex:+' data-semantic-id='27' data-semantic-operator='infixop,+' data-semantic-parent='50' data-semantic-role='addition' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 15117.4 -708)'/%3E%3Cg aria-level='3' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:4' data-semantic-children='30,46' data-semantic-content='31' data-semantic-id='51' data-semantic-owns='30 31 46' data-semantic-parent='50' data-semantic-role='multiplication' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='4' data-latex='y_A' data-mml-node='msub' data-semantic-annotation='depth:5' data-semantic-attributes='latex:y_A' data-semantic-children='28,29' data-semantic-id='30' data-semantic-owns='28 29' data-semantic-parent='51' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23a' aria-level='5' data-c='1D466' data-latex='y' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:6' data-semantic-attributes='latex:y' data-semantic-font='italic' data-semantic-id='28' data-semantic-parent='30' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(1 0 0 -1 16117.6 -708)'/%3E%3Cuse xlink:href='%23h' aria-level='5' data-c='1D434' data-latex='A' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:6' data-semantic-attributes='latex:A' data-semantic-font='italic' data-semantic-id='29' data-semantic-parent='30' data-semantic-role='latinletter' data-semantic-type='identifier' data-speech-node='true' transform='matrix(.707 0 0 -.707 16640.6 -555.3)'/%3E%3C/g%3E%3Cuse xlink:href='%23d' aria-level='4' data-c='22C5' data-latex='%5Ccdot' data-mml-node='mo' data-semantic-annotation='depth:5' data-semantic-attributes='latex:%5Ccdot' data-semantic-id='31' data-semantic-operator='infixop,⋅' data-semantic-parent='51' data-semantic-role='multiplication' data-semantic-type='operator' data-speech-node='true' transform='matrix(1 0 0 -1 17443.2 -708)'/%3E%3Cg aria-level='4' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:5' data-semantic-children='45' data-semantic-content='32,40' data-semantic-id='46' data-semantic-owns='32 45 40' data-semantic-parent='51' data-semantic-role='leftright' data-semantic-type='fenced' data-speech-node='true'%3E%3Cuse xlink:href='%23e' aria-level='5' data-c='28' data-latex='(' data-mml-node='mo' data-semantic-annotation='depth:6' data-semantic-attributes='latex:(' data-semantic-id='32' data-semantic-operator='fenced' data-semantic-parent='46' data-semantic-role='open' data-semantic-type='fence' data-speech-node='true' transform='matrix(1 0 0 -1 17943.4 -708)'/%3E%3Cg aria-level='5' data-mml-node='mrow' data-semantic-added='true' data-semantic-annotation='depth:6' data-semantic-children='35,39' data-semantic-content='36' data-semantic-id='45' data-semantic-owns='35 36 39' data-semantic-parent='46' data-semantic-role='subtraction' data-semantic-type='infixop' data-speech-node='true'%3E%3Cg aria-level='6' data-latex='x_B' data-mml-node='msub' data-semantic-annotation='depth:7' data-semantic-attributes='latex:x_B' data-semantic-children='33,34' data-semantic-id='35' data-semantic-owns='33 34' data-semantic-parent='45' data-semantic-role='latinletter' data-semantic-type='subscript' data-speech-node='true'%3E%3Cuse xlink:href='%23c' aria-level='7' data-c='1D465' data-latex='x' data-mml-node='mi' data-semantic-annotation='clearspeak:simple;depth:8' data-semantic-attributes='latex:x' data-semantic-font='italic' data-semantic-id='33' data-semantic-parent='35' 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