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JEE Mains · Maths · STD 12 - 7.2 definite integral

यदि \(\int_0^1\left(x^{21}+x^{14}+x^7\right)\left(2 x^{14}+3 x^7+6\right)^{1 / 7} d x=\frac{1}{l}(11)^{m / n}\) है, जहाँ \(1, \mathrm{~m}, \mathrm{n} \in \mathbb{N}, \mathrm{m}\) एवं \(\mathrm{n}\) असहभाज्य हैं, तब \(1+\mathrm{m}+\mathrm{n}\) का मान ____________ है।

  1. A \(62\)
  2. B \(61\)
  3. C \(63\)
  4. D \(64\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(63\)

Step-by-step Solution

Detailed explanation

\(\int\left(x^{20}+x^{13}+x^6\right)\left(2 x^{21}+3 x^{14}+6 x^7\right)^{1 / 7} d x\) \(2 x ^{21}+3 x ^{14}+6 x ^7= t\) \(42\left( x ^{20}+ x ^{13}+ x ^6\right) dx = dt\)…
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