Question

# Does the expansion of $\left(2{x}^{2}-\frac{1}{x}\right)$ contain any term involving x9?

Solution

## Suppose x9 occurs in the given expression at the (r + 1)th term. Then, we have: Hence, there is no term with x9 in the given expression.MathematicsRD Sharma XI (2015)Standard XI

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