Question

The coefficients of x^2 and x^3 in the expansion of (3 − 2x) ^6 are a and b respectively. What is the value of a ∕ b?

Answer 1

first we will expand the given expansion by binomial theorem and then we will get some terms in we will have a term having x^2 and x^3 . Now we can get the value of a and b as they are the coefficients of x^2 ans x^3.