precal

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

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  1. left and right are both 1

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  2. use sin squared + cos squared = 1

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  3. thanks

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

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  5. Thats ok, I think I kind of understand it.

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