1.

A sequence a1,a2,a3,⋯ is defined by letting a1=3 and ak=7ak−1 for all natural numbers k≥2. Then an=(Solve using mathematical induction)

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A sequence a1,a2,a3, is defined by letting a1=3 and ak=7ak1 for all natural numbers k2. Then an=

(Solve using mathematical induction)



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