5) 4) 3) 2) Test the convergence of the series (-1)" 2 n+1 n=1 n + 1 The series converges conditionally. The series converges absolutely. The series diverges. Use the ratio test to test the convergence of the series IM n=1 3" The series converges absolutely. The series diverges. The ratio test is inconclusive. Test the convergence of the series IM8 n=1 Let f(x)cos x. What is the linear approximation of f(x) centered at x = 0? What is the quadratic approximation of the function f(x) eat x=0? The series converges absolutely. The series diverges. y=1 y=1+x y=1- 2 y=x y=1+x y =1+x 2 y = x + y=1+x+ + 2