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If the coefficients of x^(3) and x^(4) i...

If the coefficients of `x^(3)` and `x^(4)` in the expansion of `(1 + ax + bx^(2)) (1 - 2x)^(18)`, in powers of x both zero, then (a,b) is equal to

A

`(16, (251)/(3))`

B

`(14, (272)/(3))`

C

`(14, (251)/(3))`

D

`(16, (272)/(3))`

Text Solution

Verified by Experts

The correct Answer is:
D
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