Question: Find a simplified expression for cos (sin Add Work Question 9 Using a double-angle or half-angle formula to simplify the given expressions. (a) If

Find a simplified expression for cos (sin Add Work Question 9 Using a double-angle or half-angle formula to simplify the given expressions. (a) If cos (23) - sin(23) = cos(4), then degrees. (b) If cos (2x) - sin(2x) = cos(B), then A = B = Add Work Question 10 Solve 8 sin( 2 = os (sin-'()) Question 11 = 2 for the four smallest positive solutions. Solve for t. 0

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