Need help with a problem

Trigonometry equalities, inequalities and expressions - sin, cos, tan, cot

Need help with a problem

Postby Guest » Sun Feb 07, 2016 11:16 am

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.
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Re: Need help with a problem

Postby leesajohnson » Wed Mar 30, 2016 5:21 am

I would like to suggest you to check out some examples to understand the proper process of solving such kind of problems. If you will find the answer here you will never try to understand it by yourself. Your teacher has given the homework so that you can try to solve it by yourself. Try it first by yourself and if you face some problem then you should ask your teacher to explain it.

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Re: Need help with a problem

Postby Guest » Wed Mar 30, 2016 9:29 am

Is this not a help forum??
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Re: Need help with a problem

Postby Guest » Wed Mar 30, 2016 9:48 am

It seems that there is something wrong with the problem.
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Re: Need help with a problem

Postby Guest » Wed Mar 30, 2016 1:30 pm

There may be a problem with the problem.?
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Re: Need help with a problem

Postby Guest » Wed Mar 30, 2016 6:53 pm

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

What's the problem with the problem.?
It reads sin squared (x+1) = [3 times [sin of (cosx - sinx)]] + 3

it is cyclic so various values for x satisfy.

x = 2.334 and x = 3.331 radians satisfy the equation.
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