1.

If x_(n)=cos((pi)/(4^(n)))+i sin ((pi)/(4^(n))), then x_(1), x_(2), x_(3)....oo is equal to

Answer»

`(1+isqrt3)/(2)`
`(-1+isqrt3)/(2)`
`(1-isqrt3)/(2)`
`(-1-isqrt3)/(2)`

ANSWER :A


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