JEE Main 201910 Apr, Morning shiftMathematicsMediumBinomial Theorem and Its Simple Applications131× since 2002
If the coefficients of x²
and x³
are both zero, in the expansion of the expression (1 + ax + bx²
) (1 – 3x)¹⁵ in
powers of x, then the ordered pair (a,b) is equal to :