Ask Experts Questions for FREE Help !
Ask
    mitzie09's Avatar
    mitzie09 Posts: 1, Reputation: 1
    New Member
     
    #1

    Mar 20, 2012, 07:18 AM
    verifying identities
    I need equation for this: sinx/(1-cosx) + tan x/(1 + cosx). The answer must be (cos^2x + 1)/(sinx cosx).has something to do with verifying identities.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
     
    #2

    Mar 20, 2012, 08:05 AM
    If you convert the tanx to sinx/cosx, then with a little algebraic manipulation you can get the left hand side to be equal to the right hand side. Hint - multiply the first fraction on the left hand side by (1+cosx)/(1+cosx) and the second fraction by (1-cosx)/(1-cosx), then combine.

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!

Verifying trigonometric identities [ 1 Answers ]

cos(y) sin(y)= cs c(y)

Verifying identities [ 1 Answers ]

How to verify identities

Verifying identities [ 2 Answers ]

sin(x+y)/(sin(x)+sin(y)=(sin(x)-sin(y))/sin(x-y)

Verifying Trig Identities [ 1 Answers ]

sec^2X csc^2X=sec^2+csc^2X


View more questions Search