1.

If (sin(x //2) + cos (x//2) + itan x )/(1 + 2isin (x //2))is real then x =

Answer»

`n pi or n pi + (pi)/(4)`
`2n pi or n pi + (pi)/(4)`
`n pi or n pi+ (pi)/(2)`
`n pi or n pi + (pi)/(6)`

ANSWER :B


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