Posted by **Alycia** on Tuesday, December 4, 2012 at 11:27pm.

cos x cot = csc - sin

- Trig -
**Reiny**, Tuesday, December 4, 2012 at 11:33pm
What are we doing?

Solving ?

or

proving it is an identity?

BTW, you have to put the x for all the trig functions

that is,

cosx cotx = cscx - sinx

Let's see if it is an identity...

LS = cosx (cosx/sinx

= cos^2 x/sinx

RS = 1/sinx - sinx

= (1 - sin^2 x)/sin

= cos^2 x/sinx

= LS

ahh, it is an identity

- Trig -
**Mac**, Tuesday, December 4, 2012 at 11:35pm
Cos (cos/sin)= cos^2/sin = (1 - sin^2x)/sin

1/sin sin^2/sin = csc x sin x

## Answer This Question

## Related Questions

- Trigonometry - Hello all, In our math class, we are practicing the trigonometric...
- verifying trigonometric identities - How do I do these problems? Verify the ...
- Pre-Calculus - I don't understand,please be clear! Prove that each equation is ...
- Pre-Calculus - Prove that each equation is an identity. I tried to do the ...
- trig - For each expression in column I, choose the expression from column II to ...
- Math - Trig - I'm trying to verify these trigonometric identities. 1. 1 / [sec(x...
- Math - Which of the following are inverse functions? 1. Arcsin x and sin x 2. ...
- math (repost) - Which of the following are inverse functions? 1. Arcsin x and ...
- algebra - Can someone please help me do this problem? That would be great! ...
- Trigonometry - Verify the identities. 1.) √1-COSθ/1+COSθ= 1+SIN...

More Related Questions