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The sum of the coefficient of odd powers...

The sum of the coefficient of odd powers of x in the expansion of `(1+x+x^2)^15` is

A

`(3^15+1)/(2)`

B

`(3^15-1)/(2)`

C

`(3^15)/(2)`

D

none

Text Solution

Verified by Experts

The correct Answer is:
B
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