Find a power series for the function: f(x) = 1+x/1-x so the solution shows: f(x) = -1 + 2/1-x >>>>>>what happened to the +x in the numerator at this point? -1+ 2 series sign x^n
Follow Math Help Forum on Facebook and Google+
When you do long division, the x gets divided by x somewhere, and x/x = 1 (1+x) / (1-x) gives -1, and a remainder of 2, hence,
View Tag Cloud