coefficient of `x^3` in `2x + x^2 - 5 x^3 + x^4`

coefficient of x^(3) in 2x+x^(2)-5x^(3)+x^(4)

Coefficient of x^5 in (1+x +x^2 +x^3)^10 is

Coefficient of x^5 in (1+x +x^2 +x^3)^10 is

Write (i) the coefficient of x^(3) in 3x^(2)-5x^(3)+x^(4) . (ii) the coefficient of x in sqrt(3)-2sqrt(2)x+6x^(2) . (iii) the coefficient of x^(2) in 2x-3+x^(3) , (iv) the coefficient of x in (3)/(8)x^(2)-(2)/(7)x+(1)/(6) . (v) the constant term in (pi)/(2)x^(2)+7x-(2)/(5)pi .

The coefficient of x^5 in (2-x +3x^2)^6 is

Write: coefficient of x^3 in x^4+5x^3+7x^2+9x+11

The coefficient of x^(2) and x in 2x^(3) -5x^(2)+ 6x-3 are respectively ………………….