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If a ^(4) +a ^(2) b ^(2) + b ^(2) = 8 an...

If `a ^(4) +a ^(2) b ^(2) + b ^(2) = 8 and a ^(2) + ab + b ^(2) = 4,` then the value of ab is

A

`-1`

B

0

C

2

D

1

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CHAMPION PUBLICATION-2011 TIER-II PAPER(23)-EXERCISE
  1. If x+1/(16x)=1, then the value of 64x^3+1/(64x^3) is यदि x+1/(16x)=...

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  2. If a,b, are three non-zero real numbers such that a + b + c =0, and b ...

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  3. If a ^(4) +a ^(2) b ^(2) + b ^(2) = 8 and a ^(2) + ab + b ^(2) = 4, th...

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  4. If a = 25,b=15, c=-10, then the value of (a^3+b^3+c^3-3abc)/((a-b)^2+(...

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  5. A, B, C are three point on a circle. The tangent at A meets BC produce...

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  6. If the length of a chord of a circle C at a distance of 12 cm from the...

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  7. In triangle ABC, P and Q are the middle points of the sides AB and AC ...

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  8. If O is the circumcenter of triangle ABC and angle OBC = 35^@, then th...

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  9. If I is the incentre of triangle ABC and angle BIC = 135^@, then trian...

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  10. If sin^2 alpha+ sin^2 beta=2, then the value of (cos frac (alpha+beta)...

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  11. Find the value of cot""(pi)/20.cot""(3pi)/20.cot""(5pi)/20.cot""(7pi)/...

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  12. If sin theta+cos theta= 17//13, 0 < theta <90^@, then the value of sin...

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  13. If tantheta.tan2theta=1, then find the value of sin^(2)2theta+tan^(2)2...

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  14. The following line diagram represents the yearly sales figure of a com...

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  15. The following line diagram represents the yearly sales figure of a com...

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  16. The following line diagram represents the yearly sales figure of a com...

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  17. The following line diagram represents the yearly sales figure of a com...

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  18. The following line diagram represents the yearly sales figure of a com...

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  19. The following table shows the number of students of 7 college particip...

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  20. The following table shows the number of students of 7 college particip...

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