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Here's the question you clicked on:
hammytams
tan^2x + cot^2x = sec^2x + cosec ^2x - 2
tan^2x = sec^2x -1 cot^2x = csc^2x -1 ^^ Use these, you should be able to get the right side from the left.
ohhhhh yessss :) thank you very much
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