Q. The term independent of x in $(2 x - \frac{1}{2 x ^{2}})^{12}$

1619 181 Binomial Theorem Report Error

A

$-^{12} C_{3} . 2^{6}$

17%

B

$-^{12} C_{5} . 2^{2}$

26%

C

$^{12} C_{6}$

29%

D

$^{12} C_{4} . 2^{4}$

27%

Solution:

Use the formula $r = \frac{n p}{p + q}$