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Caculus Help : Integrating with trig identities?

  • Thread starter eay444
  • Start date
  • #1
5
0

Homework Statement



integrate: sin (2x)/(1+sinx)



Homework Equations



(sin x)^2 + (cos x) ^2 = 1
sin (2x) = 2 sin x cos x
cos (2x) = (cos x)^2 - (sin x)^2



The Attempt at a Solution



I've been trying to integrate this thing for about an hour by rearranging various trig idenities with no luck. Am I missing something? I don't think this problem is supposed to be that hard. Someone please help!

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
I would try first replacing sin (2x) with 2 sin x cos x then do u sub and let u = cos x. Try that and see if it helps
 
  • #3
5
0
I got it now, Thanks for your help.
 

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