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18 June, 02:57

Solve: 10 sin? (x) - 3sin (x) - 1 = 0

Let u = sin (x).

The given equation is equivalent to

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

Therefore

sin (x) =

or sin (x) =

+2
Answers (2)
  1. 18 June, 03:17
    0
    sin (x) = 1/2 or sin (x) = -1/5
  2. 18 June, 03:18
    0
    sin (x) = 1/2 or sin (x) = - 1/5
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