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  4. The coefficient of x2 term in the binomial expansion of ((1/3)x1/2+x-1/4)10 is :

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Q. The coefficient of $x^2$ term in the binomial expansion of $\left(\frac{1}{3}x^{1/2}+x^{-1/4}\right)^{10}$ is :

BITSATBITSAT 2019

Solution:

Correct answer is (a) $\frac{70}{243}$