ExamBro
ExamBro
JEE Mains · Maths · STD 11 - 7. binomial theoram

यदि \(\left(1+x^{\log _{2} x}\right)^{5}\) के द्विपद प्रसार में तीसरा पद \(2560\) के बराबर है, तो \(x\) का एक संभव मान है 

  1. A \(\frac{1}{4}\)
  2. B \(4\sqrt 2 \)
  3. C \(\frac{1}{8}\)
  4. D \(2\sqrt 2 \)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{1}{4}\)

Step-by-step Solution

Detailed explanation

In the expansion of \(\left(1+x^{\log _{2} x}\right)^{5}\) third term say \(\mathrm{T}_{3}=^{5} \mathrm{C}_{2}\left(\mathrm{x}^{\log _{2} \mathrm{x}}\right)^{2}=2560\) \(\Rightarrow\left(x^{\log x}\right)^{2}=256\) taking lograthium to the base \(2\) on both sides…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app