Question
Find the sum of the products of the corresponding terms of sequences 2, 4, 8, 16, 32 and 128, 32, 8, 2,
Solution
If we multiply the corresponding terms of given two sequences, we get 2 (128), 4 (32), 8(8), 16(2), 32 or 256, 128, 64, 32, 16 which is a G.P. with a = 256,
, n =5.
∴