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RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
- If x-1/x=-1, find the value of x^2+1/(x^2)
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- If a^2+b^2+c^2-a b-b c-c a=0, then find the relation between a,b and c
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- If 9x^2+25 y^2=181 and x y=-6, find the value of 3x+5y
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- if a-b=6 , ab=20 . find a^3-b^3
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- Write the following in expanded form: (i)(9x+2y+z)^2 (ii) (3x+2y...
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- Prove that a^2+b^2+c^2-a b-b c-c a is always non-negative for all valu...
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- If a+b+c=9 and a b+b c+c a=40 , find a^2+b^2+c^2dot
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- Simplify : (i)(a+b+c)^2 (ii) (a+b+c)^2-(a-b-c)^2
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- If x^2+1/(x^2)=98 , find the value of x^3+1/x^3
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- Simplify the following: 7x^3+8y^3-(4x+3y)(16 x^2-12 x y+9y^2)
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- If a-b=6 and a b=20 , find the value of a^3-b^3
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- If a+b=10 and a b=21 , find the value of a^3+b^3
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- If 4x^2+y^2=40 and x y=6, find the value of 2x+ydot
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- If a+b=7 and a b=12 , find the value of (a^2-a b+b^2)
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- If x^2+1/(x^2)=83. find the value of x^3-1/x^3
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- If x+y+z=1,x y+y z+z x=-1 and x y z=-1, find the value of x^3+y^3+z^3d...
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- Find the following products: (i) (0. 9 x+0. 7 y)(0. 81 x^2-0. 63 x y+...
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- If a+b+c=15 and a^2+b^2+c^2=83 , find the value of a^3+b^3+c^3-3abc
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- Without actually calculating the cubes. Find the value of each of th...
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- If a+b+c=9 and a^2+b^2+c^2=35 , find the value of a^3+b^3+c^3-3a b c
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