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For every positive integer n, prove that...

For every positive integer n, prove that `7^n - 3^n` is divisible by 4.

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NCERT GUJARATI-PRINCIPLE OF MATHEMATICAL INDUCTION-EXERCISE - 4.1
  1. For every positive integer n, prove that 7^n - 3^n is divisible by 4.

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  2. Prove the following by using the principle of mathematical induction f...

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  3. Prove the following by using the principle of mathematical induction f...

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  4. Prove the following by using the principle of mathematical induction f...

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  5. Prove the following by using the principle of mathematical induction f...

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  6. Prove the following by using the principle of mathematical induction f...

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  7. Prove the following by using the principle of mathematical induction f...

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  8. Prove the following by using the principle of mathematical induction f...

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  9. Prove the following by using the principle of mathematical induction f...

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  10. Prove the following by using the principle of mathematical induction f...

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  11. Prove the following by using the principle of mathematical induction f...

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  12. Prove the following by using the principle of mathematical induction f...

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  13. Prove the following by using the principle of mathematical induction f...

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  14. Prove the following by using the principle of mathematical induction f...

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  15. Prove the following by using the principle of mathematical induction f...

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  16. Prove the following by using the principle of mathematical induction f...

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  17. Prove the following by using the principle of mathematical induction f...

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  18. Prove the following by using the principle of mathematical induction f...

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  19. Prove the following by using the principle of mathematical induction f...

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  20. Prove the following by using the principle of mathematical induction f...

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  21. Prove the following by using the principle of mathematical induction f...

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