9
AssignmentMultiple Choice

Solving Trigonometric Equations

Question 9 • Precalculus

Solve 2sin2(x) – 5sin(x) – 3 = 0.Let u = sin(x).Which of the following is equivalent to the given equation?(2u + 1)(u – 3) = 0(2u + 3)(u – 5) = 0(2u – 2)(u – 1) = 0

Answer
A
(2u + 1)(u – 3) = 0
B
(2u + 3)(u – 5) = 0
C
(2u – 2)(u – 1) = 0
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