Home
Class 12
MATHS
Coefficient of x^5 in ( 1+ x)^21 + (1 + ...

Coefficient of `x^5` in `( 1+ x)^21 + (1 + x)^22 + …….+ (1 + x)^30` is

A

`""^51C_5`

B

`""^9C_5`

C

`""^31C_6 - ""^21C_6`

D

`""^30C_5 + ""^20C_5`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL THEOREM

    AAKASH SERIES|Exercise PRACTICE EXERCISE|95 Videos

  • BINOMIAL THEOREM

    AAKASH SERIES|Exercise EXERCISE - 1.1 (Level - 1) |52 Videos

  • BINOMIAL THEOREM

    AAKASH SERIES|Exercise EXERCISE - I|27 Videos

  • AREAS

    AAKASH SERIES|Exercise Exercise-3.2|21 Videos

  • CIRCLE

    AAKASH SERIES|Exercise EXERCISE -1.4|38 Videos

Similar Questions

Explore conceptually related problems

Coefficient of x^(2) in log(1+x) =

Coefficient of x^5 in (1+x +x^2 +x^3)^10 is

The coefficient of x^5 in (1+x^2)^5 (1+x)^4 is

Coefficient of x^3 in 1+(1+x) +(1 +x)^2 +…..+(1+x)^n is

The coefficient of x^3 in (1-4x)^(1//2) is

Find the coefficient of x^5 in (3 - 4x)^(-1)