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If sin^(-1)((x^2-y^2)/(x^2+y^2))=loga ,t...

If `sin^(-1)((x^2-y^2)/(x^2+y^2))=loga ,t h e n(dy)/(dx)` is equal to (a) `x/y` (b) `y/(x^2)` (C) `(x^2-y^2)/(x^2+y^2)` (d) `y/x`

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