Wb Jee
Binomial Theorem
WB JEE 2009
MCQ+1 / -0.252009
If the coefficients of x2 and x3 in the expansion of (3 + ax)9 be same, then the value of a is
Wb Jee
WB JEE 2009
If the coefficients of x2 and x3 in the expansion of (3 + ax)9 be same, then the value of a is