What is the remainder estimate RNR_NRN for the alternating series ∑n=1∞(−1)nbn\sum_{n=1}^{\infty} (-1)^n b_n∑n=1∞(−1)nbn?
∣RN∣≤bN+1|R_N| \leq b_{N+1}∣RN∣≤bN+1
∣RN∣≤bN|R_N| \leq b_N∣RN∣≤bN
RN=bN+1+bN+2R_N = b_{N+1} + b_{N+2}RN=bN+1+bN+2
∣RN∣≤b1|R_N| \leq b_1∣RN∣≤b1