Problem 1 18 pts (3 points each): Six Sequences For each of the sequences below,

Question

Problem 1 18 pts (3 points each): Six Sequences For each of the sequences below, state whether it is arithmetic, uadratic, geometric, or neither. If the sequence is of one of the three types, then give a closed formula for its general term. Assume that indexing starts at 1. For example, the sequence a= (9, 13, 16, 20, 24, 28, ) is arithmetic with difference 4. Its general term is given by the formula an-54n (for n 2 1) i. 6,18,54, 162, 486, 1458,.. ii. 20, 17,14,11, 8,5,... iii. 12,-24, 48,-96, 192,-384,.. iv. 5, -9, 13,-17,21,-25,... v. 4,12, 26, 46, 72, 104, vi. 520 x 76, 519 x 77, 518 × 78, 517 × 79, 516 x 710, 515 x 711

Explanation / Answer

As per Chegg policy, I am answering only four subparts of first question. Kindly upload remaining questions further in order to get them answered.

i.) an = 6*3n where n>=0; geometric

ii.) an = 20 - 3*n where n>=0; arithmetic

iii.) an = 12*(-1)n * (2)n where n>=0; geometric

iv.) an = (-1)n (5 + 4*n) where n>=0; arithmetic

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