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Thread: Complete the identity?

  1. #1
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    Complete the identity?

    I am having trouble with these three questions.
    It says to complete the identity for each of them:

    Question 1:
    sec theta - (1/sec theta) = ?

    Question 2:
    csc theta (sin theta + cos theta) = ?

    Question 3:
    tan theta (cot theta - cos theta) = ?

    Any help is appreciated.
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  2. #2
    Super Member bigwave's Avatar
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    since there is no way to prove what is given

    it is apparent that what is being asked for is to combine so there is no + or - in the expressions

    each has several possibilities as an answer.
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