Homework Help: Confused! Pre-Cal

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

Verify that each equation is an identity..
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

No one has answered this question yet.

Answer this Question

Related Questions

Algebra2 Verify Identity - Verify the Identity: csc(x)+sec(x)/sin(x)+cos(x)=cot(...
Pre Cal - could someone please tell me what the other angle identity of tan is? ...
pre cal - verify each identity tan(x/2)=tanx/secx+1
trig - Verify that each trigonometric equation is an identity tan^2+1/sec Î...
algebra/trignometry - Verify that each trigonometric equation is an identity tan...
Pre Calculus - Verify the identity: cos x + sin x tan x = sec x.
Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...
Calc 2 - Ok, I have two questions first: 1. I'm asked to find a cartesian ...
pre cal - Verify each identity sin^x+siny/sinx-siny=tan(x+y/2) (times) cot(x-y/2...
Trigonometry - How do you verify the equation is an identity? Tan^2x-tan^2y=sec^...

For Further Reading

First Name:
School Subject:
Answer: