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Answers by MynameisJEFF

Answers by MynameisJEFF
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If a and b are two angles in standard position in Quadrant I, find cos(a+b) for the given function values. sin a=8/17and cos b=12/13 1) -220/221 2) -140/221 3) 140/221 4) 220/221
answered Dec 1, 2023
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