If the coefficient of `x^(7)`in `[ax^(2) + (1/bx)]^(11)` equals the coefficient of `x^(-7)`in `[ax - (1/(bx^(2)))]^(11)` then a and b satisfy the relation

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-

If the coefficient of x^(8) in (ax^(2)+(1)/(bx))^(13) is equal to the coefficient of x^(-8) in (ax-(1)/(bx^(2)))^(13) then a and b will satisfy the relation

If the coefficient of x^(8)"in"(ax^(2)+(1)/(bx))^(13) is equal to the coefficeinet of x^(-8)" in" (ax-(1)/(bx^(2)))^(13) , then a and b will satisfy the relation -

If the coefficient of x^7 in (ax^2+1/(bx))^11 is equal to the coefficient of x^-7 in (ax-1/(bx^2))^11 then

If the coefficient of x^8 in (ax^2+1/(bx))^13 is equal to the coefficient of x^-8 in (ax-1/(bx^2))^13 , then a and b will satisfy the relation

Find the coefficient of x^7 in (x^2+(1/x))^11

y= ax + bx^(2)

If the magnitude of the coefficient of x^(7) in the expansion of (ax^(2)+(1)/(bx))^(8) , where a, b are positive numbers, is equal to the magnitude of the coefficient of x^(-7) in the expansion of (ax-(1)/(bx^(2)))^(8) , then a and b are connected by the relation

The coefficient of x^4 in the expansion of (1+x+x^2+x^3)^11 is

Coefficient of x^(11) in the expansion of (1+3x+2x^2)^6 is equal to