AnswersPrecalculusTrigonometric Half Angle IdentitiesQuestion 1
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Trigonometric Half Angle Identities

Question 1 • Precalculus

Solve: 10 sin2(x) – 3sin(x) – 1 = 0 Let u = sin(x).The given equation is equivalent to .

Answer
A
(2u – 1)(5u + 1) = 0
B
(10u + 1)(u – 1) = 0
C
(5u – 1 )(2u– 1) = 0
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