Question: If the coefficient of 4<sup>th</sup> term in the expansion of $1 - (1 + y)^{- 1/3}$ is 56, then n ...

Question

If the coefficient of 4^th term in the expansion of $1 - (1 + y)^{- 1/3}$ is 56, then n is.

Answer 1

$T _ { 4 } = T _ { 3 + 1 }$ $\left( x^{4} + \frac{1}{x^{3}} \right)^{15}$

⇒ $r =$ ⇒ $(r + 1)^{th}$

⇒ $\left( \sqrt[3]{\frac{a}{\sqrt{b}}} + \sqrt{\frac{b}{\sqrt[3]{a}}} \right)^{21}$ ⇒ $(1 + x)^{m}$

⇒ $- \frac{1}{8}x^{2}$ .

Question: If the coefficient of 4<sup>th</sup> term in the expansion of \(1 - (1 + y)^{- 1/3}\) is 56, then n ...