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Use mathematical induction to prove that each of the given statements is true fo

ID: 2976526 • Letter: U

Question

Use mathematical induction to prove that each of the given statements is true for every positive integer n. 1 / 5 + 1 / 25 + 1 / 125 + + 1 / 5n = 1 / 4 - 1 / 4 middot 5n When n = 1, both sides of the equation are equal to ; thus the statement is true. Assume that the statement is true for n = k. Then 1 / 5 + 1 / 25 + 1 / 125 + + 1 / 5k = Add 1 / 5k+1 to both sides of the equation to get Thus, the statement is for n = k + 1. Therefore, by the Principle of Mathematical Induction, the statement is for all positive integers n.

Explanation / Answer

a)1/5 b)1/4 -1/(4*5^k) c)4