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-   -   Proving trig identities (https://www.askmehelpdesk.com/showthread.php?t=619435)

  • Dec 13, 2011, 06:24 PM
    janea29
    proving trig identities
    2tanx/1-tan^2x 1/2cos^2x-1
  • Dec 14, 2011, 04:29 AM
    Unknown008
    Convert all the ratios to sine and cosine ratios and try to simplify the fractions.

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