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10 questions from this quiz
sin(A + B) = sin A cos B + cos A sin B
cos^2 A - sin^2 A
sin(A/2) = sqrt((1 - cos A)/2)
cos(A - B) = cos A cos B - sin A sin B
(tan A + tan B)/(1 - tan A tan B)
Identify the equation type
2 sin A cos A
To simplify trigonometric expressions
sqrt((1 + cos A)/2)
Mismatching identity applications
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