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RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
- If x^2+1/(x^2)=27 , find the value of each of the following: x-1/x
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- If x+y=12 and x y=32 , find the value of x^2+y^2
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- If 3x+2y=12 and x y=6 , find the value of 9x^2+4y^2
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- If 4x^2+y^2=40\ and x y=6 , find the value of 2x+y
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- 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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- If : a^2+b^2+c^2-a b-b c-c a=0 , prove that a=b=c
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- Evaluate each of the following using identities: (i)(2x-1/x)^2 (ii...
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- Evaluate each of the following using identities: (i)(a^2b-b^2a)^2 ...
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- Evaluate each of the following using identities: (1. 5 x^2-0. 3 y^2)\...
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- Evaluate each of the following using identities: (i)(399)^2(ii) (0. 98...
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- Evaluate each of the following using identities: (i)991\ xx\ 1009 (ii)...
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- Simplify each of the following: 175\ xx\ 175+2\ xx\ 175\ xx\ 25+25\ xx...
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- Simplify each of the following: 322\ xx\ 322-2\ xx\ 322\ xx\ 22+22\ xx...
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- Simplify each of the following: 0. 76\ xx\ 0. 76+2\xx\ 0. 76\ xx\ 0. 2...
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- Simplify each of the following: (7. 83\ xx\ 7. 83-1. 17\ xx\ 1. 17)/(6...
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- If x+1/x=11 , find the value of x^2+1/(x^2)
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- If x-1/x=\ -1, find the value of x^2+1/(x^2)
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- If x+1/x=sqrt(5) , find the values of x^2+1/(x^2) and x^4+1/(x^4)
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- If x^2+1/(x^2)=66 , find the value of x-1/x
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- If x^2+1/(x^2)=79 , find the value of x+1/x
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