Question:
9. Determine the sum of each series. a) 400 +420 + 440 + ...
Last updated: 8/6/2022
9. Determine the sum of each series. a) 400 +420 + 440 + ... +620 th= a +(n-1)d 620=400+ (n-1) 20 220 =(n-1) 20 11 = n-1 n = 12; b) 3+6+ 12+ 24 +48 +...+1536