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# C2 maths help watch

1. show that (2 - cos^2 x) / (1 + sin^2 x) is equal to 1

I have substituted cos^2 x by (1 - sin^2 x) but I don't know what to do next
2. Multiply both sides by (1+Sin^2x) then expand the bracket, to get 2-cos^2x=1+sin^2x. so 1-cos^2x=sin^2x and then sin^2x+cos^2x=1.

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