If sin^(-1)x=theta+betaa n dsin^(-1)y=th...

If `sin^(-1)x=theta+betaa n dsin^(-1)y=theta-beta,` then `1+x y` is equal to `sin^2theta+sin^2beta` (b) `sin^2theta+cos^2beta` `cos^2theta+cos^2theta` (d) `cos^2theta+sin^2beta`

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