A) 84
B) 8.4
C) 0.84
D) - 84
Correct Answer: D
Solution :
\[(9-r)\left( -\frac{1}{6} \right)+r\left( \frac{1}{3} \right)=0\Rightarrow r=3\] So the term independent of y = \[^{9}{{C}_{3}}{{({{y}^{-1/6}})}^{6}}{{(-{{y}^{1/3}})}^{3}}=-84\].
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