if `x+1/x=1` then `x^20+x^30+x^40`

If x+1/(x)=4 and x^2+1/(x^3)=30 then x^3+1/x^2=?

1/4x=30 then x=________

If the roots of x^4 +5x^3 - 30 x^2 - 40 x+64=0 are in G.P then roots of x^4 - 5 x^3 - 30 x^2 + 40 x+ 64 =0 are in

If the roots of x^4 +5x^3 - 30 x^2 - 40 x+64=0 are in G.P then roots of x^4 - 5 x^3 - 30 x^2 + 40 x+ 64 =0 are in

If the sum of the binomial coefficients in the expansion of (x+ 1/x)^n is 64, then the term independent of x is equal to (A) 10 (B) 20 (C) 30 (D) 40

If the sum of the binomial coefficients in the expansion of (x+ 1/x)^n is 64, then the term independent of x is equal to (A) 10 (B) 20 (C) 30 (D) 40

The number of terms in the expansion of (1+2x +x^2)^20 is 40

Find the coefficient of x^20 in the expression of (1+x^2)^40(x^2+2+1/x^2)^-5 .

Find the coefficient of x^(20) in (x^(2)+2+(1)/(x^(2)))^(-5)(1+x^(2))^(40)

Find the coefficient of x^(20) in (x^2+2+1/(x^2))^(-5)(1+x^2)^(40)dot