" (ii) "(a-bx)^(7/3)

Differential coefficient of (a-bx)^((7)/(3))

If the coefficient of x^(7) in (ax ^(2) +(1)/(bx)) ^(11) equals the corfficient of x^(-7) in (ax- (1)/(bx^(2)))^(11), then a and b satisfy the equation-

The coefficent of x^(n) in the series 1+(a+bx)/(1!)+(a+bx)^(2)/(2!)+(a+bx)^(3)/(3!) +…is

The coefficent of x^(n) in the series 1+(a+bx)/(1!)+(a+bx)^(2)/(2!)+(a+bx)^(3)/(3!) +…is

If -2, 5, 7, - 11 are the roots of ax^(4) + bx^(3) +cx^(2) + dx + e = 0 then the roots of ax^(4) - bx^(3) + cx^(2) - dx + e = 0 are

if f(x)=ax^(7)+bx^(3)+cx-5,f(-7)=7 then f(7) is