Home
Class 11
MATHS
Find a if the coefficient of x^2 and x^3...

Find a if the coefficient of `x^2 and x^3` in the expansion of `(3+ax)^9` are equal

A

`(8)/(5)`

B

`(9)/(5)`

C

`(8)/(7)`

D

`(9)/(7)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PRACTICE PAPER III

    CBSE COMPLEMENTARY MATERIAL|Exercise (Section-A)(fill in the blanks)|7 Videos

  • PRACTICE PAPER III

    CBSE COMPLEMENTARY MATERIAL|Exercise (Section-A)|6 Videos

  • PRACTICE PAPER DESIGN - I

    CBSE COMPLEMENTARY MATERIAL|Exercise SECTION -D|6 Videos

  • PRACTICE PAPER-II

    CBSE COMPLEMENTARY MATERIAL|Exercise Section-D (Long Answer Type-I)|7 Videos

Similar Questions

Explore conceptually related problems

If the coefficient of x^(2) and x^(3) in the expansion of (3+ax)^(11) are equal then a=_______

The coefficient of x^(3) in the expansion of 3^(x) is

Find the coefficient of x^(6)y^(3) in the expansion of (x+2y)^(9)

Find the coefficient of x^(6).y^(3) in the expansion of (2x+y)^(9)

Find the coefficient of x^(6)y^(3) in the expansion of (x+2y)^(9)

Find the coefficient of x^(2)y^(3)z^(4) in the expansion of (ax-by+cz)^(9)

Find the coefficient of x^5 in the expansion of (x+3)^9

Find a if the coefficients of x^(2) and in the expansion of in the expansion of are equal.

the coefficient of x in the expansion of (3x+2)^(2) is