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AP EAMCET · Maths · Binomial Theorem

The sum of the rational term in the binomial expansion of \(\left(\sqrt{2}+3^{1 / 5}\right)^{10}\) is

  1. A 41
  2. B 39
  3. C 32
  4. D 30
Verified Solution

Answer & Solution

Correct Answer

(A) 41

Step-by-step Solution

Detailed explanation

Rational terms are \(T_{11}, T_1\) \(\begin{aligned} & \mathrm{T}_{11}={ }^{10} \mathrm{C}_{10}\left(3^{1 / 5}\right)^{10}(\sqrt{2})^0=9 \\ & \mathrm{~T}_1={ }^{10} \mathrm{C}_0\left(3^{\frac{1}{5}}\right)^0 \cdot(\sqrt{2})^{10}=32 \end{aligned}\) Sum of rational terms \(=41\)