Wednesday

April 16, 2014

April 16, 2014

Posted by **Liath** on Monday, September 21, 2009 at 8:42pm.

1. 1 / [sec(x) * tan(x)] = csc(x) - sin(x)

2. csc(x) - sin(x) = cos(x) * cot(x)

3. 1/tan(x) + 1/cot(x) = tan(x) + cot(x)

4. csc(-x)/sec(-x) = -cot(x)

- Math - Trig -
**MathMate**, Monday, September 21, 2009 at 11:27pmCan you post your attempts?

I will give you a kickstart:

1/(sec(x)tan(x))

=1/(1/cos(x) * sin(x)/cos(x))

=cos²(x)/sin(x)

=(1-sin²(x))/sin(x)

=csc(x) - sin(x)

**Related Questions**

Trigonometry - Verify the identities. 1.) √1-COSθ/1+COSθ= 1+SIN...

trigonometry repost - Reduce (csc^2 x - sec^2 X) to an expression containing ...

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

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

Trigonometry - Verify the identities. 1.) SIN[(π/2)-X]/COS[(π/2)-X]=...

trig - I do not understand these problems. :S I'd really appreciate the help. ...

more trig.... how fun!!!! - if you can't help me with my first question hopw you...

Trig - Find the exact values of the six trigonometric functions 0 if the ...

Math - Which of the following are inverse functions? 1. Arcsin x and sin x 2. ...

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