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Posted by on Friday, March 23, 2012 at 8:10pm.

cosx/secx+sinx/cscx=sec^2x-tan^2x

  • precal - , Friday, March 23, 2012 at 10:22pm

    left and right are both 1

  • precal - , Friday, March 23, 2012 at 10:23pm

    use sin squared + cos squared = 1

  • precal - , Friday, March 23, 2012 at 10:28pm

    thanks

  • precal - , Friday, March 23, 2012 at 10:33pm

    You are welcome. I did it out but was unable to post the solution. The board seems to be acting up.

  • precal - , Friday, March 23, 2012 at 10:38pm

    Thats ok, I think I kind of understand it.

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