Mathematical induction to prove that 21 + 22 + 23 + 24 + 2" = 2(2" – 1) •.. is true for all neN

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A: Solution 1: Given 5∠π42 Here ∠π4=cosπ4+isinπ4⇒5∠π4=5cosπ4+isinπ4⇒5∠π42=52cosπ4+isinπ42⇒5∠π42=52cos2×...

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