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If sin^(-1)((sqrt(x))/2)+sin^(-1)(sqrt(1...

If `sin^(-1)((sqrt(x))/2)+sin^(-1)(sqrt(1-x/4))+tan^(-1)y=(2pi)/3`, then

A

maximum value of `x^(2)+y^(2)` is `49/3`

B

maximum value of `x^(2)+y^(2)` is 4

C

minimum vlaue of `x^(2)+y^(2)` is `1/2`

D

minimum value of `x^(2)+y^(2)` is 3

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