Solve this: Q.56. ∑ i = 1 ∞ ∑ j = 1 ∞ ∑ k = 1 ∞ 1 a i + j + k is equal to, where a > 1 (A) a - 1 - 3 (B) 3 a - 1 (C) 1 a 3 - 1 (D) None of these Share with your friends Share 0 Decoder_1 answered this 0 View Full Answer