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Evaluate each of the following by using identities: (i)`95\ xx\ 96` (ii) `104\xx\ 96` (iii) `105\ xx\ 106`

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RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
  1. Evaluate each of the following by using identities: (i)(0. 99)^2 ...

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  2. Evaluate each of the following by using identities: (i)0. 54\ xx\ 0....

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  3. Evaluate each of the following by using identities: (i)95\ xx\ 96 ...

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  4. If x+1/x=6, find : x^2+\ 1//x^2

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  5. If x+1/x=6, find : x^4+1/(x^4)

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  6. If x^2+1/(x^2)=27 , find the value of each of the following: x+1/x

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  7. If x^2+1/(x^2)=27 , find the value of each of the following: x-1/x

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  8. If x+y=12 and x y=32 , find the value of x^2+y^2

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  9. If 3x+2y=12 and x y=6 , find the value of 9x^2+4y^2

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  10. If 4x^2+y^2=40\ and x y=6 , find the value of 2x+y

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  11. Prove that: 2a^2+2b^2+2c^2-2a b-2b c-2c a=[(a-b)^2+(b-c)^2+(c-a)^2]

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  12. If : a^2+b^2+c^2-a b-b c-c a=0 , prove that a=b=c

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  13. Evaluate each of the following using identities: (i)(2x-1/x)^2 (ii...

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  14. Evaluate each of the following using identities: (i)(a^2b-b^2a)^2 ...

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  15. Evaluate each of the following using identities: (1. 5 x^2-0. 3 y^2)\...

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  16. Evaluate each of the following using identities: (i)(399)^2(ii) (0. 98...

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  17. Evaluate each of the following using identities: (i)991\ xx\ 1009 (ii)...

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  18. Simplify each of the following: 175\ xx\ 175+2\ xx\ 175\ xx\ 25+25\ xx...

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  19. Simplify each of the following: 322\ xx\ 322-2\ xx\ 322\ xx\ 22+22\ xx...

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  20. Simplify each of the following: 0. 76\ xx\ 0. 76+2\xx\ 0. 76\ xx\ 0. 2...

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