Hey guys!

Could you explain how to resolve, step by step, the following equations(or at least lines d) and e) )

http://www.mathhelpforum.com/math-he...022_210239.jpg

Thanks in advance!

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- Oct 22nd 2011, 12:02 PMJohnTerry*Trigonometry Equations*
Hey guys!

Could you explain how to resolve, step by step, the following equations(or at least lines d) and e) )

http://www.mathhelpforum.com/math-he...022_210239.jpg

Thanks in advance! - Oct 22nd 2011, 12:10 PMSammySRe: *Trigonometry Equations*
Show us some work.

What do you have?

Where are you stuck? - Oct 22nd 2011, 12:31 PMJohnTerryRe: *Trigonometry Equations*
- Oct 22nd 2011, 12:37 PMe^(i*pi)Re: *Trigonometry Equations*
- Oct 22nd 2011, 12:51 PMJohnTerryRe: *Trigonometry Equations*
But where did the first sin(x) go?

It is possible to solve the equation if you factorise it, but then we assume that the first sin(x)=0? Then, sin(x)=0; sin(x)=0 ; cos(x)=2

And can you please confirm the first equation(d). The answer in the book is different.

Thanks in advance! - Oct 22nd 2011, 01:03 PMmr fantasticRe: *Trigonometry Equations*
Please don't post more than two questions in a thread. Otherwise the thread can get convoluted and difficult to follow. See rule #8: http://www.mathhelpforum.com/math-he...hp?do=vsarules.

Thread closed. Please post according to the rules, and please type the questions.