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-   -   How do you show that the equations are equal? (https://www.askmehelpdesk.com/showthread.php?t=654135)

  • Apr 24, 2012, 07:06 PM
    Skeleuth
    How do you show that the equations are equal?
    How do you show that the equations are equal?

    (tan^2(x))/csc(x) + 1 = tan^4(x)*(csc(x)-1)
  • Apr 25, 2012, 05:47 AM
    ebaines
    Quote:

    Originally Posted by Skeleuth View Post
    How do you show that the equations are equal?

    (tan^2(x))/csc(x) + 1 = tan^4(x)*(csc(x)-1)

    Actually as writtem these are not equal - because you left out a set of parentheses. I think what you want to show is:

    tan^2(x)/(csc(x) + 1) = tan^4(x)*(csc(x)-1)

    Start by multiplying both sides by csc(x)+1. You will end up with a term of the form csc^2x-1 on the right side, which can be simplified to 1/tan^2x.

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