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Math Help - integration of inverse trig.

  1. #1
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    integration of inverse trig.

    What is the integral of sin(-1)x + cos(-1)x?
    I know that it equals pi/2 so does that mean that the integral is (pi)x/2?

    thank you for any help =)
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  2. #2
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    that identity only holds for |x|\le1.
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  3. #3
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    Hello christina
    Quote Originally Posted by christina View Post
    What is the integral of sin(-1)x + cos(-1)x?
    I know that it equals pi/2 so does that mean that the integral is (pi)x/2?

    thank you for any help =)
    Yes, give or take a constant of integration, and provided the values of x lie in a suitable range.

    Grandad
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