sin cos tan no constant problem

Geometric formulae, word problems, theorems and proofs, etc.
jboykin325
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sin cos tan no constant problem

Postby jboykin325 » Thu Mar 03, 2011 8:05 pm

I cannot figure out how to simplify the following problem:

[sin(x)/tan(x)] + cos(x)tan(x)

The instructions are to simplify.
How do i go about this?

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stapel_eliz
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Postby stapel_eliz » Thu Mar 03, 2011 10:18 pm

jboykin325 wrote:[sin(x)/tan(x)] + cos(x)tan(x)

The instructions are to simplify.
How do i go about this?

A good place to start might be to convert everything to sines and cosines, and see if anything cancels. Or you could try converting to a common denominator, and seeing if the combined fraction leads anywhere helpful.

To be honest, though, many times these things only seem to "rearrange"; the "simplified" form often doesn't seem a whole lot "simpler", at least not to me. :shock:

jboykin325
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Re: sin cos tan no constant problem

Postby jboykin325 » Fri Mar 04, 2011 7:57 pm

oh wow thats it! :D
I just used common denominator, and i found the correct answer in my book! thanks for the idea :D :D


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