Monday

April 21, 2014

April 21, 2014

Posted by **stacey graham** on Wednesday, May 5, 2010 at 9:25pm.

how to simplify

- trig -
**Reiny**, Wednesday, May 5, 2010 at 9:47pmsec^2x/tanx -(tanx)

= (1/cos^2x)(cosx/sinx) - sinx/cosx

= 1/(sinxcosx) - sinx/cosx

= (1 - sin^2x)/(sinxcosx)

= cos^2x / (sinxcosx)

= cosx/sinx

= cot x

**Related Questions**

calculus - Did I do this problem right? Find the first and second derative-...

Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...

Trigonometry - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b...

Trigo - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in ...

Math - 1)A piano tuner uses a tuning fork. If middle C has a frequency of 264 ...

Calculus - Int tanx sec^2x dx can be taken as (by putting it in form of Int xdx...

trig - We are doing trig identities in school. I need help with these five: 1.1+...

trig - Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx))

math - how does secx(tanx + tan^2x- sec^2x) simplified to sec x (tanx -1)?

Calculus - find the derivative of f(x)=tanx-4/secx I used the quotient rule and ...