Eamcet Mathematics
Algebra Mathematical Induction

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Q.

For all n ∈ N, 10n+3,4n+2+5 is divisible by

View Answer

Correct choice: C

Explanation:

 When n = 1, 10n + 3.4n+2 + 5 = 207,
n=2.102+3(4)4+5
= 100 + 768 + 5 = 873 ……
HCF of 207, 873 is 9.
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