The thing is that my book states that I can solve this one partly exact.

That is for half of the inifinite solutions.

But I can get nothing of this, no exact solutions at all.

Where am I wrong?

Thanks in advance.

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- August 29th 2006, 03:52 AMa4swe8sin^2(v)-2cos(v)=5

The thing is that my book states that I can solve this one partly exact.

That is for half of the inifinite solutions.

But I can get nothing of this, no exact solutions at all.

Where am I wrong?

Thanks in advance. - August 29th 2006, 04:26 AMRandom333Quote:

Originally Posted by**a4swe**

So, I just factorised here to give:

And then solve

that's in radians obviously.

That's what I've figured from it but I'm not 100% sure if I'm right but it looks right to me. - August 29th 2006, 04:49 AMCaptainBlackQuote:

Originally Posted by**Random333**

RonL - August 29th 2006, 05:10 AMa4sweQuote:

Originally Posted by**Random333**

Well, yes you are right it's my LaTeX skills that stoped me.

Next time I'll do it right.

Thank you. - August 29th 2006, 05:38 AMtopsquark
Speaking of LaTeX, this will make things a little neater:

for your "+-".

-Dan - August 29th 2006, 06:46 AMSoroban
Hello, a4swe!

Am I missing something important?

. . I found**all**the solutions . . .

And I have*no idea*what your book means by "exact" solutions.

Quote:

Why introduce fractions? . . . Don't you*hate*them as much as I do?

We have: .

Factor: .

And solve:

. .

. .

. . . and thosethe exact solutions.*are*

- August 29th 2006, 07:16 AMCaptainBlackQuote:

Originally Posted by**Soroban**

RonL