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-   -   (tan x cot x) 2 = sec 4 x cot 2? (https://www.askmehelpdesk.com/showthread.php?t=547594)

  • Jan 24, 2011, 07:45 PM
    ximena15
    (tan x cot x) 2 = sec 4 x cot 2?
  • Jan 25, 2011, 07:48 AM
    ebaines

    This is very straightforward, but I believe the "cot^2" bit should be replaced with "cos^2" - in other words the equatioin is this:



    Please verify this is what you meant.

    To demonstrate this equality, just replace each of the terms with their sine and cosine equivalents, and it falls right out.

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