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-   -   Establishing identities help (https://www.askmehelpdesk.com/showthread.php?t=450425)

  • Feb 22, 2010, 06:37 PM
    ag1538
    establishing identities help
    establish the identity:

    sec(to the 4th power) - sec(squared)= tan (to the 4th power) + tan (squared)
  • Feb 23, 2010, 05:07 AM
    galactus

    This is rather straightforward. Just use the identity .

    Sub it in and it'll fall into place.

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