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Find the number of positive integral sol...

Find the number of positive integral solution of the equation `tan^(-1)x+cos^(-1)(y)/(sqrt(1+y^(2)))=sin^(-1)((3)/(sqrt(10)))`.

A

x=1.y=2, x=2,y=7

B

x=1, y=3, x=2,y=4

C

x=0,y=0, x=3,y=4

D

None of these

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The correct Answer is:
A
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