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24 August, 20:34

Solve: 10 sin^2 (x) - 3sin (x) - 1 = 0 let u=sin (x)

The given equation is equivalent to which one below?

(2u-1) (5u+1) = 0

(10u+1) (u-1) = 0

(5u-1) (2u-1) = 0

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Answers (2)
  1. 24 August, 20:52
    0
    The answer is (2u-1) (5u+1) = 0
  2. 24 August, 21:00
    0
    (2u-1) (5u+1) = 0
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