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Using the principle of mathematical induction, prove that `(2^(3n)-1)` is divisible by `7` for all `n in N`

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RD SHARMA ENGLISH-MATHEMATICAL INDUCTION-All Questions
  1. Using the principle of mathematical induction. Prove that (x^(n)-y^(n...

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  2. Using the principle of mathematical induction prove that 41^n-14^n ...

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  3. Using the principle of mathematical induction, prove that (2^(3n)-1) i...

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  4. Using principle of mathematical induction prove that sqrtn<1/sqrt1+1/s...

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  5. Prove that: 1+2+3+....+ n<((2n+1)^2)/8 for all ""n in Ndot

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  6. Prove that: 1^2+2^2+3^2.....+n^2>(n^3)/3,n in N

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  7. A sequence x0, x1,x2,x3, ddot is defined by lettingx0=5 and xk=4+x(k-1...

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  8. Prove by the principle of mathematical induction that n<2^n"for all"n ...

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  9. Prove by the principle of mathematical induction that for all n in N ...

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  10. Using the principle of mathematical induction, prove that : 1. 2. 3+2...

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  11. Prove the following by using the principle of mathematical inductio...

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  12. Prove that: (1+1/1)(1+1/2)(1+1/3)(1+1/n)=(n+1) for all n in Ndot

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  13. Using principle of MI prove that 2.7^n+3.5^n-5 is divisible by 24

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  14. Prove by the principle of mathematical induction that (n^5)/5+(n^3)/3+...

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  15. For all positive integer n , prove that (n^7)/7+(n^5)/5+2/3n^3-n/(105)...

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  16. If P(n) is the statement "2^(3n)-1 . Is an integral multiple 7", and i...

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  17. Let P(n) be the statement "3^n > n" . If P(n) is true, P(n+1) is also ...

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  18. If P(n) is the statement n^2&gt; 100" , prove that whenever P(r) is...

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  19. Prove by the principle of mathematical induction that for all n in N ...

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  20. Prove by the principle of mathematical induction that for all n in N ...

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