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State whether the square of the given nu...

State whether the square of the given number is even or odd:
`(i)523" "(ii)654" "(iii)6776" "(iv)7025`

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RS AGGARWAL-SQUARES-SOLVED EXAMPLES
  1. Give reason to show that none of the numbers given below is a perfect ...

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  2. Give reason to show that none of the numbers 640,81000 and 360000 is a...

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  3. State whether the square of the given number is even or odd: (i)523...

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  4. Without adding find the sum: (1+ 3+5 +7 +9) (1+3+5+7+9+11+13+15+1...

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  5. Express: 64 as the sum of 8 odd natural numbers. 121 as the sum of...

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  6. Find the Pythagorean triplet whose smallest number is 12.

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  7. Evaluate [(337)^(2)-(336)^(2)].

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  8. Usting the identity (a+ b)^(2) = (a^(2) + 2ab +b^(2)), evaluate: (60...

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  9. Evaluate (i) 49 xx 51 (ii)30 xx 32

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  10. Find the square root of 784 by the long-division method.

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  11. Evaluate sqrt (5329) using long-division method.

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  12. Evaluate sqrt (16384).

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  13. Find: sqrt(10609)

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  14. Evaluate sqrt(66049).

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  15. Find the cost of erecting of fence around a square field whose area is...

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  16. What least number must be subtracted from 7250 to get a perfect square...

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  17. Find the greatest number of 4 digits which is a perfect square.

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  18. What least number must be added to 5607 to make the sum a perfect squa...

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  19. Find the least number of six digits which is a perfect square. Find th...

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  20. Evaluate sqrt (42.25). sqrt( 1.96). sqrt(6.4009). sqrt (0.4225). ...

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