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Find the squares of the following numbers using the identity `(a-b)^2=a^2-2a b+b^2` (I)491 (ii) 189 (iii) 575

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RD SHARMA ENGLISH-SQUARES AND SQUARE ROOTS-All Questions
  1. Find the squares of the following numbers; (I)515               (ii) ...

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  2. Find the squares of the following numbers using the identity (a+b)^2...

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  3. Find the squares of the following numbers using the identity (a-b)^2...

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  4. Find the squares of the following numbers using column method. Verif...

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  5. Find the square root of the following number by prime factorization....

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  6. Find the squares of the number127

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  7. Find the squares of the following numbers: (I)425                (ii)...

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  8. Find the squares of the following numbers using the identity (a+b)^2...

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  9. Find the squares of the following numbers using the identity (a-b)^2...

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  10. Find the squares of the following number by visual method: 52

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  11. sqrt(4)=2. b e c a u s e\ 2^2=4. sqrt(9)=3,\ b e c a u s e\ 3^2=9. ...

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  12. Find the square root of 36 by successive subtractions.

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  13. Find the square root of 11025 by prime factorization.

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  14. Find the square root of 7744 by prime factorization.

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  15. Find the square root of 298116 by prime factorization.

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  16. Find the smallest number by which 1100 must be multiplied so that t...

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  17. Find the smallest number by which 9408 must be divided so that it b...

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  18. 5929 students are sitting in an auditorium in such a manner that the...

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  19. A general wishing to arrange his men, who were 335250 in number in ...

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  20. The product of two numbers is 1575 and their quotient is 9/7dot Fin...

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