Binomial Theorem · JEE Main previous year questions

2017 1 question

1. Q62017 · 9 Apr 2017 · Shift 1

   The coefficient of $x^{-5}$ in the binomial expansion of ${\left(\frac{x+1}{x^{\frac{2}{3}}-x^{\frac{1}{3}}+1}-\frac{x-1}{x-x^{\frac{1}{2}}}\right)}^{10}$, where $x\ne 0,1$, is :

   1. A.$1$
   2. B.$4$
   3. C.$-4$
   4. D.$-1$
   Show answer

   Answer: A