If 0 ≤ r ≤ n, then the coefficient of x r in the expansion of P = 1 + (1 + x) + (1 + x) 2…
Mathematics · JEE Advanced · NTA Exams — Binomial Theorem And Its Simple Applications
If 0 ≤ r ≤ n, then the coefficient of xr in the expansion of
P = 1 + (1 + x) + (1 + x)2 + ..... + (1 + x)n is
P = 1 + (1 + x) + (1 + x)2 + ..... + (1 + x)n is
- nCr
- n+1Cr+1
- nCr+1
- none of these
Answer
(B) n+1 C r+1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The greatest coefficent in the expansion of (1 + x) 2n is
- If a_ n = _ r=0 ^ n 1 ^ n C_ r , then equals
- 1 . n C 1 + 2, n C 2 + 3 . n C 3 + ....+ n. n C n is equal to
- 30 0 30 10 - 30 1 30 11 + .+ 30 20 30 30 =
- The sum of coefficients of the two middle terms in the expansions of (1 + x) 2n – 1 is equal to :
- The greatest value of the term independent of x in the expansion of (x sin α + x –1 cos α) 10 , α ∈ R, is
- The expansion of (3x + 2) -1/2 is valid in ascending powers of x, if x lies in the interval
- If s_ n = _ r=0 ^ n 1 ^ n C_ r and t_ n = _ r=0 ^ n r ^ n C_ r then t_ n s_ n is equal to
More Binomial Theorem And Its Simple Applications questions · Browse all practice questions