[SOLVED] More verifying that each trigonometric equation is an identity.

**somanyquestions** · March 21st 2010, 09:06 PM

verify that
(cos x +1)/(tan^2 x) = (cos x)/(sec x -1)

i'm having way too much trouble with these problems.

**pickslides** · March 21st 2010, 09:15 PM

Originally Posted by somanyquestions

i'm having way too much trouble with these problems.

always start with the left hand side and manipulate to find the right hand side. Here's a start...

$\frac{\cos x +1}{\tan^2 x}= \frac{\cos x }{\tan^2 x}+\frac{1}{\tan^2 x}= \dots$

**somanyquestions** · March 21st 2010, 09:20 PM

Originally Posted by pickslides

always start with the left hand side and manipulate to find the right hand side. Here's a start...

$\frac{\cos x +1}{\tan^2 x}= \frac{\cos x }{\tan^2 x}+\frac{1}{\tan^2 x}= \dots$

well i know we can manipulate the left side in a few ways but it requires creativity and i can't do it.

**Stroodle** · March 21st 2010, 09:25 PM

I'd say it takes practice more than creativity

**somanyquestions** · March 21st 2010, 09:29 PM

well i hate it

because i can never do it >

i wish my teacher would go over more problems with us.

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