If sin^(-1)x+sin^(-1)y=pi/2 and sin2x=c...

If `sin^(-1)x+sin^(-1)y=pi/2` and `sin2x=cos2y ,` then (a) `x=pi/8+sqrt(1/2-(pi^2)/(64))` (b)`y= sqrt(1/2-(pi^2)/(64))-pi/(12)` (c)`x=pi/(12)+sqrt(1/2-(pi^2)/(64))` (d)`y=sqrt(1/2-(pi^2)/(64))-pi/8`

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