If the coefficients of are equal, then | Binomial Theorem..

JEE MAIN 2023

08-04-2023 S2

Question

If the coefficients of $x^7$ in $\left(a x^2+\frac{1}{2 b x}\right)^{11}$ and $x^{-7}$ in $\left(a x-\frac{1}{3 b x^2}\right)^{11}$ are equal, then

Select the correct option:

A

64ab = 243

B

729ab = 32

C

243ab = 64

D

32ab = 729

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Easy

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