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-   -   Sec^4xtan^2x=(tan^2x+tan^4x)sec^2x (https://www.askmehelpdesk.com/showthread.php?t=447557)

  • Feb 15, 2010, 08:30 PM
    shortie0612
    sec^4xtan^2x=(tan^2x+tan^4x)sec^2x
    I need to solve this trig proof
  • Feb 16, 2010, 07:16 AM
    galactus

    You can prove one is equal to the other by setting all terms to sec.
    Use

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