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If x + y + z = 0 ,then the value of ...

If ` x + y + z = 0` ,then the value of ` ( x^(2) + y^(2) + z^(2))/( x^(2) - yz)` is

A

A)1

B

B)2

C

C)`-2`

D

D)`-1`

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The correct Answer is:
B
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MOTHERS-ALGEBRA -MULTIPLE CHOICE QUESTION
  1. If (6x)/((2x^(2) + 5x - 2)) = 1, x gt 0, then the value of x^(3) + (1)...

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  2. If 4x^(2) - 6x + 1 = 0, then the value of 8x^(3) + (8x^(3))^(-1) is :

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  3. If x + y + z = 0 ,then the value of ( x^(2) + y^(2) + z^(2))/( x...

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  4. If a^2+b^2+c^2+27= 6(a+b+c), then what is the value of root (3)(a^3+b^...

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  5. If x + (1)/(x) = 3, then x^(3) + (1)/(x^(3)) is equal to :

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  6. If sqrt(x) - (1)/(sqrt(x)) = 4, then x^(2) + (1)/(x^(2)) is equal to :

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  7. If a + b + c = 13 and ab + bc + ca = 54, then a^(3) + b^(3) + c^(3) - ...

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  8. If x + (1)/(x) = sqrt(5), then x^(3) + (1)/(x^(3)) is equal to :

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  9. If (3x-1)^3+(4x-3)^3+ (2x+1)^3= 3(3x - 1)(4x - 3)(2x +1) and x ne 1/3 ...

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  10. If a + b + c = 11 and ab + bc + ca = 38, then a^(3) + b^(3) + c^(3) - ...

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  11. If x-5 sqrtx-1=0, then x^2+1/x^2 is equal to : यदि x-5 sqrtx-1=0 ह...

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  12. If sqrtx+1/sqrtx= sqrt 6, then x^2+1/x^2 is equal to: यदि sqrtx+1/s...

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  13. If a + b + c = 8 and ab + bc + ca = 12, then a^3+b^3+c^3-3abc is equal...

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  14. If a + b = 5 and ab = 3, then (a^3+b^3) is equal to: यदि a + b = 5 ह...

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  15. If a + b + c = 6 and ab + bc + ca = 4 , then a^3+b^3+c^3-3abc is equal...

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  16. If (a+ b) = 6 cm and ab =16/3, then a^3+b^3 is equal to: यदि (a+ b) ...

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  17. If sqrt(x) - (1)/(sqrt(x)) = sqrt(6), then x^(2) + (1)/(x^(2)) is equa...

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  18. If a + b = 8 and ab = (32)/(3), then (a^(3) + b^(3)) is equal to :

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  19. If sqrt(x) + (1)/(sqrt(x)) = sqrt(7), then x^(3) + (1)/(x^(3)) is equa...

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  20. If a + b+c = 4 and ab + bc + ca = 2, then a^(3) + b^(3) + c^(3) - 3abc...

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