I'm all out of ideas here. Anyone?

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- September 17th 2007, 01:39 PMSpec[SOLVED] Trig equation

I'm all out of ideas here. Anyone? - September 17th 2007, 02:16 PMTKHunny
I'd start with the Right-hand side. Multiply numerator and denominator by 1 + sin(x) and see what happens.

Like many such problems, it may not lead anywhere, but it's a place to start and something else may hit you.

For example, while I was typing this, it dawned on me that I don't happen to know any formulas for tan(2x) right off the top of my head. I might be tempted to change that to sines and cosines. Maybe not.

Rule #1 on Trig Identities -- You can't break it. Just try something. - September 17th 2007, 02:45 PMSpec
Thanks, but I've already tried everything I can think of. I need to see a solution soon or my head will explode. :eek:

As if the last one wasn't bad enough, I'm now stuck with this one as well:

- September 17th 2007, 04:56 PMSoroban
Hello, Spec!

Quote:

We have: .

. . . .

Factor: .

And we have two equations to solve:

. .

- September 17th 2007, 05:17 PMSoroban
Hello, Spec!

I'll give only the principal roots.

. .*You*can generalize the answers . . .

Quote:

Solve for

We have: .

. .

. .

. .

. . which simplifies to: .

. . and factors: .

And we have two equations to solve.

. .

. .

- September 18th 2007, 03:29 AMSpec