Saturday

December 20, 2014

December 20, 2014

Posted by **Hannah** on Friday, March 5, 2010 at 12:55pm.

cos^2 [(pi/2) - x] / cos x

Does csc x match with this?

- Math -
**Reiny**, Friday, March 5, 2010 at 1:02pmcos(pi/2-x) = sinx

(e.g. cos 70 = sin 20)

[cos^2 (pi/2-x)]/cosx = sin^2 x/cosx

= (sinx/cosx)sinx

= tanxsinx

Don't know what you mean by "match with this"

**Answer this Question**

**Related Questions**

verifying trigonometric identities - How do I do these problems? Verify the ...

Trigonometry - Hello all, In our math class, we are practicing the trigonometric...

Alg2/Trig - Find the exact value of the trigonometric function given that sin u...

Math - cos(tan + cot) = csc only simplify one side to equal csc so far I got ...

Math - State the restrictions on the variables for these trigonometric ...

math - Proving Trigonometric Identities 1. sec^2x + csc^2x= (sec^2 x)(csc^2 x) 2...

pre calc trig check my work please - sin x + cos x -------------- = ? sin x sin ...

Pre-Calculus - I don't understand,please be clear! Prove that each equation is ...

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

Pre-Calculus - Prove that each equation is an identity. I tried to do the ...