हिंदी

For all n ∈ N, 3.52n+1 + 23n+1 is divisible by ______.

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प्रश्न

For all n ∈ N, 3.52n+1 + 23n+1 is divisible by ______.

विकल्प

  • 19

  • 17

  • 23

  • 25

MCQ
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उत्तर

For all n ∈ N, 3.52n+1 + 23n+1 is divisible by 17.

Explanation:

Let P(n): 3.52n+1 + 23n+1

For P(1): `3.5^(2.1+1) + 2^(3.1+1)`

= 3.53 + 24

= 3(125) + 16

= 375 + 16

= 23 × 17

= 391 

So it is divisible by 17.

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अध्याय 4: Principle of Mathematical Induction - Exercise [पृष्ठ ७२]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar [English] Class 11
अध्याय 4 Principle of Mathematical Induction
Exercise | Q 27 | पृष्ठ ७२

वीडियो ट्यूटोरियलVIEW ALL [1]

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