1.

If sin x + cos x = 1then x =

Answer»

`2 n PI , ( 4 n + 1) (pi)/( 2), n in Z`
`n pi, ( 4 n + 1) (pi)/( 2) , NIN Z`
`n pi , ( 2 n + 1) (pi)/(2) n in Z`
` 2 n pi,( 2 n + 1) (pi)/( 2) , n in Z`

ANSWER :A


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