Sum the series : `x(x+y)+x^2(x^2+y^2)+x^3(x^3+y^3+ ton` terms.

Sum the series : x(x+y)+x^(2)(x^(2)+y^(2))+x^(3)(x^(3)+y^(3)+... to n terms.

x(x+y)+x^(2)(x^(2)+y^(2))+x^(3)(x^(3)+y^(3))+ to n terms

Sum the series: x(x+y)+x^(2)(x^(2)+y^(2))+x^(3)(x^(3)+y^(3)).... to n terms

Find the sum of the series x(x+y)+x^2(x^2+y^2)+x^3(x^3+y^3)+……to infinity where |x|lt1 and |y|lt1.

Find the sum of the series x(x+y)+x^2(x^2+y^2)+x^3(x^3+y^3)+……to infinity where |x|lt1 and |y|lt1.

If |x|<1 and |y|<1, find the sum to infinity of the series : (x+y)+(x^2+x y+y^2)+(x^3+x^2y+x y^2+y^3)+ .......

Find the sum of x(x+y) + x^(2) (x^(2) + y^(2)) + x^(3) (x^(3) + y^(3))+ ……..to n terms

Find the sum of the following series x(x+y)+x^(2)(x^(2)+y^(2))+x^(3)(x^(3)+y^(3))+... upto n terms and (x+y)+(x^(2)+xy+y^(2))+(x^(3)+x^(2)y+xy^(2)+y^(3))+ upto n terms

Find the sum of n terms of series (x+y) + (x^2+ xy +y^2)+(x^3+x^2y+xy^2+y^3)+..................