# How do you solve #sin^2x + 2sinx - 3 = 0#?

##### 1 Answer

May 3, 2015

Let sin x = t,

Since a + b + c = 0, one real root is t = 1 and the other:

The solution t = -3 is rejected.

May 3, 2015

Let sin x = t,

Since a + b + c = 0, one real root is t = 1 and the other:

The solution t = -3 is rejected.

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