# Power series of inverse trig functions

by zeebo17
Tags: functions, inverse, power, series, trig
 P: 607 You can, it is called "reversion" of a series. But the formulas get more and more complicated as you proceed. For arcsin, a better way to find the series is to start with the binomial series for $(1-x^2)^{-1/2}$ and integrate term-by-term.