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Mathematics, 12.08.2021 02:20 jazare05

PLEASE HELP ASAP What is the first part of the second step to prove that Sn→1 + 4 + 7 + ... + (3n - 2) =

n(3n-1)/2?

a. verify that Sn is valid for n = 1

b. show that Sn is valid for n = k

c. assume that Sn is valid for n = k

d. prove that Sn is valid for n = k + 1

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Answers: 3

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