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Thread: trig substitutions

  1. July 29th 2007, 01:31 PM #1
    davecs77
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    trig substitutions

    How would you do this
    integral of sin^4(2x)dx by using trig substitution? The 4th power throws me off.
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  2. July 29th 2007, 01:33 PM #2
    ThePerfectHacker
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    Quote Originally Posted by davecs77 View Post
    How would you do this
    integral of sin^4(2x)dx by using trig substitution? The 4th power throws me off.
    Use the half-angle identity.
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