# 4(1/2.3)+8(2/3.4)+16(3/4.5)+.............nterms. Prove that by induction that {[(2)^n+2]/n+2}-2

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We have to prove that sum of n terms and the n+1 th term is equal to the sum according to the formula given. This is the proof by Induction.

Hence proved by Induction, as if the formula is good for n, then it is good for n+1 also.

Hence proved by Induction, as if the formula is good for n, then it is good for n+1 also.