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  1. Question: Precalculus

    by musicrulez
    Answers
    4
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    413

    Comment on galactus's post

    So for another one, I have
    4tanxcos²x-2tanx/1-tan²x=2tanx/1-tan²x.
    So far, I have simplified it to 2tanxcos²x/1-tan²x.
    Could I set up a proportion setting my identities equal to each other?
  2. Question: Precalculus

    by musicrulez
    Answers
    4
    Views
    413

    Comment on galactus's post

    THank you !
  3. Question: Precalculus

    by musicrulez
    Answers
    4
    Views
    413

    Precalculus

    I have no idea how to solve this!
    It's about Verifying trigonometric identities.
    Here's the problem:

    1 divided by 1+tanx = cotx divided by 1+cotx
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