Sunday

October 26, 2014

October 26, 2014

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

- Trig -
**Reiny**, Tuesday, December 4, 2012 at 11:33pmWhat 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 11:35pmCos (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 ...

Math - Trig - I'm trying to verify these trigonometric identities. 1. 1 / [sec(x...

trig - For each expression in column I, choose the expression from column II to ...

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...