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TS EAMCET · Maths · Binomial Theorem

Numerically greatest term in the expansion of \((3 x-4 y)^{23}\) when \(x=\frac{1}{6}\) and \(y=\frac{1}{8}\) is

  1. A \(\frac{{ }^{23} \mathrm{C}_{11}}{6^{23}}\)
  2. B \({ }^{23} \mathrm{C}_{11}\left(\frac{8}{6}\right)^{23}\)
  3. C \({ }^{23} \mathrm{C}_{11}\left(\frac{6}{8}\right)^{23}\)
  4. D \({ }^{23} \mathrm{C}_{11}\left(\frac{1}{2}\right)^{23}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \({ }^{23} \mathrm{C}_{11}\left(\frac{1}{2}\right)^{23}\)

Step-by-step Solution

Detailed explanation

\( \text{Let } A=3x, B=-4y, n=23. \) \( \left| \frac{B}{A} \right| = \left| \frac{-4y}{3x} \right| = \frac{4y}{3x} = \frac{4(\frac{1}{8})}{3(\frac{1}{6})} = \frac{\frac{1}{2}}{\frac{1}{2}} = 1 \)…