RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
- If x^4+1/(x^4)=47 , find the value of x^3+1/(x^3)
03:21
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- If x^4+1/(x^4)=194 , find x^3+1/(x^3),x^2+1/(x^2) and x+1/x
05:26
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- If x-1/x=7, find the value of x^3-1/(x^3)
02:31
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- Simplify: ((a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3)/((a-b)^3+(b-c)^3+(c-a)...
06:00
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- Find the value of 4x^2+y^2+25 z^2+4x y-10 y z-20 z x when x=4,y=3 and ...
03:06
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- If a^2+b^2+c^2=250 and a b+b c+c a=3, find a+b+c
01:18
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- If a+b+c=6 and a b+b c+c a=11 , find the value of a^3+b^3+c^3-3a b c
03:32
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- Find the following products: (i) (x+y+2z)(x^2+y^2+4z^2-x y-2y z-2x z)...
09:56
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- If x-1/x=-1, find the value of x^2+1/(x^2)
01:21
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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
02:30
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- If 9x^2+25 y^2=181 and x y=-6, find the value of 3x+5y
03:30
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- if a-b=6 , ab=20 . find a^3-b^3
01:55
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- Write the following in expanded form: (i)(9x+2y+z)^2 (ii) (3x+2y...
05:11
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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...
03:44
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- If a+b+c=9 and a b+b c+c a=40 , find a^2+b^2+c^2dot
01:20
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- Simplify : (i)(a+b+c)^2 (ii) (a+b+c)^2-(a-b-c)^2
02:30
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- If x^2+1/(x^2)=98 , find the value of x^3+1/x^3
03:30
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- Simplify the following: 7x^3+8y^3-(4x+3y)(16 x^2-12 x y+9y^2)
02:11
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- If a-b=6 and a b=20 , find the value of a^3-b^3
02:42
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- If a+b=10 and a b=21 , find the value of a^3+b^3
03:06
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