![If | x | < 1 and | y | < 1, then the sum of infinity of the series (x + y) + (x^2 + xy + y^2) + (x^3 + x^2y + xy^2 + y^3) + ..... to ∞ is If | x | < 1 and | y | < 1, then the sum of infinity of the series (x + y) + (x^2 + xy + y^2) + (x^3 + x^2y + xy^2 + y^3) + ..... to ∞ is](https://haygot.s3.amazonaws.com/questions/1985539_1255658_ans_a4da1a92ffd74b5895a27a49ebadfa89.jpeg)
If | x | < 1 and | y | < 1, then the sum of infinity of the series (x + y) + (x^2 + xy + y^2) + (x^3 + x^2y + xy^2 + y^3) + ..... to ∞ is
How to solve this differential equation, xy'+y'=0? What kind of methods should I study for this kind of equation and other exam-like problems - Quora
![Differential Equation - 1st Order: Reducible to Separable Forms (3.5 of 7) Example 2: xy'= x+y - YouTube Differential Equation - 1st Order: Reducible to Separable Forms (3.5 of 7) Example 2: xy'= x+y - YouTube](https://i.ytimg.com/vi/H0P5PFMNRGs/hqdefault.jpg)
Differential Equation - 1st Order: Reducible to Separable Forms (3.5 of 7) Example 2: xy'= x+y - YouTube
![ordinary differential equations - Finding series solution of xy'' + y = 0 - Mathematics Stack Exchange ordinary differential equations - Finding series solution of xy'' + y = 0 - Mathematics Stack Exchange](https://i.stack.imgur.com/dQq2o.jpg)