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Math Help - trig substitutions

  1. #1
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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. #2
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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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