(5x)" 8. Given the power series (-1)", find and justify its interval of n=2 4n In(n) convergence and the behavior of the series at the end points of the interval. -Ex 1-x -- -1+ + + + +... n! 1! 3! x²+1 sin x = Y(−1). -2-1- x- (2n + 1)! 3! 5! 7! Cos X- - 2 (-1)-2-1 - + ²+1 tan 'x- (-1); ---+-+... A-0 2n + 1 In(1+x)= -2---¹--+-+