1.

Iftan^(2) (pi ( x + y) ) + cot^(2) ( pi( x + y)) = 1 + sqrt((2 x )/( 1 + x^(2))where x, y are real, then theleast positivevalueof y is

Answer»

1
`(1)/(4)`
`(1)/(4)`
`(3)/(5)`

ANSWER :A


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