Use the binomial series to expand the function as a power series. 5Squareroot 1 - x a. 1 + sigma^infinity _n=1 (-1)^n+1 4 middot (5n - 6)/5^n middot n! x^n b. 1 + 1/5 x + sigma^infinity _n=2 4 middot 9 (5n - 6)/n! x^n c. 1 - 1/5 x sigma^infinity _n=2 4 middot 9 (5n - 6)/n! x^n d. sigma^infinity _n=0 (-1)^n+1(5n - 6)^n/5n x^n e. 1 - 1/5 x - sigma^infinity _n=2 4 middot 9 (5n - 6)/n! x^n State the radius of convergence, R. R = ____
