Ask Experts Questions for FREE Help !
Ask
    super47's Avatar
    super47 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 14, 2013, 04:33 PM
    verify the identity solver
    cos t + cos 3t
    sin 3t - sin t = cot t

    for the answer I got -cot t=cot t
    I don't know what I'm doing wrong
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
    Ultra Member
    		  
    #2

    Apr 14, 2013, 06:57 PM
    If you could show us your work we may be able to pinpoint the error. However, I can tell you the key lies in the addition and double angle formulas.
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
    Ultra Member
    		  
    #3

    Apr 15, 2013, 08:19 AM
    Don't forget to keep your +/- signs in check!
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!

Verify identities solver? [ 9 Answers ]

tan2x=(2tanx)/(1-tan^2x)

Verify the identity [ 1 Answers ]

sec(x) + tan(x)=1/(sec(x)-tan(x))

Verify the identity [ 2 Answers ]

secx-sinxtanx=cosx

Verify identity [ 9 Answers ]

tan(a-b) = (1-cot(a)tan(b)/cot(a)+tan(b))

Verify the identity [ 1 Answers ]

verify the identity : 2sinxcotx+sinx-4cotx-2/2cotx+1=sinx-2

View more questions Search