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Thread: Grade 11 Trigonometric Identities Question

  1. March 29th 2009, 09:49 PM #1
    s3a
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    Grade 11 Trigonometric Identities Question

    I don't know how to simplify the following identity (the square root confuses me):

    cosec (t) * sqrt(sec^2 (t) - 1)

    Any help would be greatly appreciated!
    Thanks!
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  2. March 29th 2009, 10:05 PM #2
    Chris L T521
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    Quote Originally Posted by s3a View Post
    I don't know how to simplify the following identity (the square root confuses me):

    cosec (t) * sqrt(sec^2 (t) - 1)

    Any help would be greatly appreciated!
    Thanks!
    Hint: \tan^2t+1=\sec^2t
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