## Need help with a problem: sin^2(x+1) = 3sin(cosx-sinx)+3

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.
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### Need help with a problem: sin^2(x+1) = 3sin(cosx-sinx)+3

Hello, we got assigned a trigonometry homework which may be graded, but the problem is we haven't already done that, so I don't know how to solve it. It's only one equation:

sin^2(x+1) = 3sin(cosx-sinx)+3

I'd be grateful if you could guide me through the solving process. English is not my native language, so sorry for any mistakes. Thanks in advance.

anonmeans
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### Re: Need help with a problem: sin^2(x+1) = 3sin(cosx-sinx)+3

I don't know how to solve it. It's only one equation:

sin^2(x+1) = 3sin(cosx-sinx)+3
Are you sure this is right? Because Wolfram Alpha can't do it exactly and if they can't do it exactly, I don't see how you're supposed to do it at all.

Code: Select all

To see what I mean, copy and paste this into your browser: https://www.wolframalpha.com/input/?lk=3&i=sin^2%28x%2B1%29%3D3sin%28cosx-sinx%29%2B3