Question: If sin r = , * in quadrant I, then find (without finding x) sin(2x) cos (2x) = tan (2x) = Question Help: Message instructor

If sin r = ", * in quadrant I, then find (without finding x) sin(2x) cos (2x) = tan (2x) = Question Help: Message instructor D Post to forum Submit Question Question 16 60/1 pt O 100 2 99 0 Details Using a double-angle or half-angle formula to simplify the given expressions. (a) If cos (38") - sin (38") = cos(A"), then A degrees (b) If cos (9z) - sin (91) = cos(B), then B Question Help: Message instructor D Post to forum Submit Question Question 17 0/1 pt O 100 99 0 Details Solve 2 sin(2w) - 1 cos(w) = 0 for all solutions 0

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