(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Write this expression in factored for as an algebraic expression of a single trig function (e.g., (2 sin x+3)(sin x-1):

sin x - cos^{2}x - 1

2. Relevant equations

cos^{2}x + sin^{2}x = 1

3. The attempt at a solution

1) cos^{2}x + sin^{2}x = 1

2) sin^{2}x = 1-cos^{2}x

3) -cos^{2}x = cos^{2}x so sin^{2}x = -cos2x+1

But the problem calls for -cos2x-1. Would the resulting function be sin2x - (-sin2x)?

4) sin x (sin x + sin x)

I'm not certain that I did it correctly

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# Homework Help: Solving a Trig Equation (Correct?)

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