A) -84
B) 84
C) 672
D) -672
Correct Answer: C
Solution :
\[(\alpha ,\,\beta ,\,\gamma )\] lie on straight line \[\Rightarrow \,\alpha +\beta +\gamma =0\]\[\Rightarrow \] coefficient of term independent in the expansion of \[{{\left( 2{{x}^{2}}-\frac{1}{x} \right)}^{9}}=672\] is the required answer.You need to login to perform this action.
You will be redirected in
3 sec