this multiple choice questions pleas if you are sure chose theright answer?
The sequence {ak} must be convergent if: {ak} is real for all k 1. {ak} is monotone increasing and {ak} > 0 for all k 1. {ak} is bounded. {ak} is bounded above and monotone increasing. |ak| 1. Let {ak} be a decresing sequence of positive numbers with limit zero. The series (-1)k ak might be divergent. has radius of convergence r = 1. converges to a number L which satisfies S2n+1
