Sunday

December 21, 2014

December 21, 2014

Posted by **Anonymous** on Tuesday, January 16, 2007 at 9:36am.

tan A= sec a/csca

I have notes (i wasn't here that day and teacher refuses to reteach) but I dont understand them here is the notes...

Problem w/ same directions:

Cos x= cotx/csc x

= Cosx/Sin x / 1/sinx = cosx

I just don't get this?!?!

What don't you understand?

To prove Cos x = cotx/csc x,

Just rewrite it as

(Cosx/Sin x) / (1/sinx) = cosx

It is just algebra.

Similarly,

tan a = sin a/cos a

= (1/csc a)/(1/sec a) = sec a/csc a

**Answer this Question**

**Related Questions**

Pre Cal - could someone please tell me what the other angle identity of tan is? ...

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

Algebra2 Verify Identity - Verify the Identity: csc(x)+sec(x)/sin(x)+cos(x)=cot(...

pre cal - verify each identity tan(x/2)=tanx/secx+1

Trigonometry - How do you verify the equation is an identity? Tan^2x-tan^2y=sec^...

Pre-Calc : Verify the Identity - Verify the Identity: sin(x+π)/cos(x+3π...

Pre Calculus - Verify the identity: cos x + sin x tan x = sec x.

Pre Calculus - Prove that the equation is an identity. sec x/(sec x -tan x)=sec^...

algebra/trignometry - Verify that each trigonometric equation is an identity tan...

trig - Verify that each trigonometric equation is an identity tan^2+1/sec α =...