Directions: Find the exact value using the appropriate identity

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Directions: Find the exact value using the appropriate identity. Use the given ratios. Simplify any radicals. Given cos⁡A=16\cos A = \frac{1}{6} and 270∘<A<360∘270^\circ < A < 360^\circ. Given sin⁡B=−56\sin B = -\frac{5}{6} and π<B<3π2\pi < B < \frac{3\pi}{2}. Find sin⁡(A+B)\sin(A+B).

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