Ask Experts Questions for FREE Help !
Ask
    crmedina23's Avatar
    crmedina23 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    May 12, 2012, 09:30 PM
    write the expression in terms of a single trig. Function
    cos^2 2 theta-sin^2 2 theta
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #2

    May 13, 2012, 06:50 PM
    Quote Originally Posted by crmedina23 View Post
    cos^2 2 theta-sin^2 2 theta
    Hint: remember the identity for cos(2x): one version is cos(2x) = cos^2x - sin^2x
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Write this expression as a single logarithm: 3 log5 (u) + 4 log5 (v) [ 2 Answers ]

Hi, I need to figure out how this expression looks as a single logarithm.

Proving trig expression ((secx-tanx)^2 1)/(secxcscx-tanxcscx)=2tanx [ 1 Answers ]

((secx-tanx)^2 1)/(secxcscx-tanxcscx)=2tanx please help me with this if you can its got me stumped

Write 24 sin3x cos3x+10 cos^2 3x-5 in terms of one sin function [ 3 Answers ]

write 24 sin3x cos3x+10 cos^2 3x-5 in terms of one sin function

Use a right triangle to write the expression as an algebraic expression. [ 1 Answers ]

sin(sin-1( x/2))

View more questions Search