Q. $x \to 0 lim \frac{cos ( 2 x ^{3} ) - 1}{sin ^{6} ( 2 x )}$ is equal to

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A

$\frac{1}{32}$

50%

B

$\frac{1}{16}$

17%

C

$- \frac{1}{16}$

17%

D

$- \frac{1}{32}$

17%

Solution:

Correct answer is (d) $- \frac{1}{32}$