Q57 / 160 · AP EAMCET 2018 (24 Apr Shift 2) · Mathematics

The sum of the coefficients of $x^{32}$ and $x^{-31}$ in $\left(x^4-\frac{1}{x^3}\right)^{15}$ is $\left(x^4-\frac{1}{x^3}\right)^{15}$

A
1470
Correct answer
B
1260
C
-1260
D
-1470

Hence, the correct answer is option: 'B'.

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