1.

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

Answer»

`(2NPI+pi/4, 2npi+(3PI)/4)`
`(2npi-pi/4, 2npi+pi/4)`
`(2npi-pi/2, 2npi+pi/2)`
`(2npi+pi/4, 2npi+(5PI)/4)`

ANSWER :A


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