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Show that the square of any positive integer is of the form `3m` or, `3m+1` for some integer `m` .

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Use Euclid's division lemma to show that the square of any positive integer is either of the form 3m or 3m + 1 for some integer m.

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RD SHARMA-REAL NUMBERS-All Questions
  1. Show that any positive odd integer is of the form 4q+1 or 4q+3 , wh...

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  2. Show that n^2-1 is divisible by 8, if n is an odd positive integer.

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  3. Show that the square of any positive integer is of the form 3m or, ...

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  4. Use Euclids division Lemma to show that the cube of any positive in...

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  5. Prove that the product of two consecutive positive integers is divi...

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  6. For any positive integer n , prove that n^3-n divisible by 6.

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  7. Prove that if a positive integer is of the form 6q+5 , then it is o...

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  8. Prove that the square of any positive integer of the form 5q+1 is o...

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  9. Prove that the square of any positive integer is of the form 4q or ...

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  10. Show that any positive odd integer is of the form 6q+1 or, 6q+3 or,...

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  11. A sweet seller has 420 kaju barfis and 130 badam barfis. She wants ...

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  12. Any contingent of 616 members is to march behind an army band of 32...

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  13. Find the largest number which divides 245 and 1029 leaving remainde...

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  14. In a seminar. the number of participants in Hindi, English and Mathema...

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  15. Define HCF of two positive integers and find the HCF of the followi...

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  16. Define HCF of two positive integers and find the HCF of the followi...

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  17. Define HCF of two positive integers and find the HCF of the followi...

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  18. Define HCF of two positive integers and find the HCF of the followi...

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  19. Use Euclid’s division algorithm to find the HCF of (i) 135 and 225 ...

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  20. Find the HCF of the following pairs of integers and express it as a ...

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