1.

If sqrt(1+sinA)-sqrt(1-sinA)=2"sin"A/2"then"A/2 in

Answer»

`(2n PI-pi/4, 2n pi+pi/4)`
`(2n pi+pi/4, 2n pi+(3PI)/4)`
`(2n pi+(3pi)/4, 2n pi+(5pi)/4)`
`(2n pi+(5pi)/4, 2n pi+(7pi)/4)`

ANSWER :A


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