Question: Angle a is in quadrant III and angle is in quadrant IV. If sin a = - and cos = 1, find cos(a +

Angle a is in quadrant III and angle is in quadrant IV.

Angle a is in quadrant III and angle is in quadrant IV. If sin a = - and cos = 1, find cos(a + B). 11-53 12 VII-53 6 11+53 11+53 12

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