For sin 2x + cos x = 0, use a double-angle or half-angle formula to simplify...

Question

Question

For sin 2x + cos x = 0, use a double-angle or half-angle formula to simplify the equation and then find all solutions of the

Answer 1

Answer #1

SIn2x Co)x O 2 Sinxceon + LO,27 2sinn t1 Sinx 2 sin x= OY 2 Geweord =KR+(1)2 X OR at k-oi OR KL E-2 K=2;X2 +23/ 3/2 OR K=2a13

Answer 2

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