Mathematics, 17.01.2020 00:31 bear342

Suppose sn is defined as 2 + 22 + 23 + . . + 2n . what is the next step in your proof of sn = 2(2n - 1), after you verify that sn is valid for n = 1?
a. show that sn is valid for n = k + 2.
b. assume that sn is valid for n = k .
c. verify that sn is valid for n = 1.
d. show that sn is valid for n = k.

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Suppose sn is defined as 2 + 22 + 23 + . . + 2n . what is the next step in your proof of sn = 2(2n...