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Prove the following by the principle of mathematical induction: `a+(a+d)+(a+2d)++(a+(n-1)d)=n/2[2a+(n-1)d]`

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CBSE COMPLEMENTARY MATERIAL-PRINCIPAL OF MATHEMATICAL INDUCTION -Short Answer Type Questions
  1. Prove the following by using the Principle of mathematical induction A...

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  2. Prove the following by using the Principle of mathematical induction A...

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  3. Prove the following by the principle of mathematical induction: a+(...

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  4. Prove the following by the principle of mathematical induction: 7+7...

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  5. sin x+sin 2x + sin 3x+...+ sin nx =(sin((n+1)/2)xsin(nx)/2)/sin(x/2)

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  6. Using principle of mathematical induction prove that cosalpha\ cos2...

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  7. Prove the following by the principle of mathematical induction: 1^2...

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  8. Prove the following by using the Principle of mathematical induction A...

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  9. Prove the following by using the Principle of mathematical induction A...

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  10. Prove the following by using the Principle of mathematical induction A...

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  11. Prove the following by using the Principle of mathematical induction A...

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  12. 1 1^(n+2)+1 2^(2n+1) is divisible by 133.

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  13. Using the principle of mathematical induction. Prove that (x^(n)-y^(n...

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  14. Prove the following by using the Principle of mathematical induction A...

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  15. 7^(2n) + 2^(3n-3).3^(n-1) is divisible by 25

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  16. Prove the following by using the Principle of mathematical induction A...

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  17. Prove the following by using the Principle of mathematical induction A...

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  18. Prove the following by using the Principle of mathematical induction A...

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  19. Prove the following by using the Principle of mathematical induction A...

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  20. Prove the following by using the Principle of mathematical induction A...

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