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If (3+2isintheta)/(1-2isintheta) is a r...

If `(3+2isintheta)/(1-2isintheta)` is a real number and 0 < `theta `< 2`pi`, then `theta`=

A

`pi`

B

`(pi)/(6)`

C

`(pi)/(3)`

D

`(pi)/(2)`

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