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If (a ^(2) - b c)/( a ^(2 ) + bc)+ (b ^(...

If `(a ^(2) - b c)/( a ^(2 ) + bc)+ (b ^(2) -ca)/( b ^(2) + ca) + (c ^(2) - ab)/( c ^(2) + ab) =1,` then the value of `(a ^(2))/(a ^(2) + bc ) + (b ^(2))/(b ^(2) + ac) + (c ^(2))/( c ^(2) + ab)` is

A

`-1`

B

2

C

0

D

1

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CHAMPION PUBLICATION-2014 TIER-II PAPER(18)-EXERCISE
  1. If bc + ab + ca = ab,c then the above of (b +c)/( bc (a - 1)) + (a + ...

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  2. The graph of 3 x + 4y - 24 = 0 forms a triangle OAB with the coor...

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  3. If (a ^(2) - b c)/( a ^(2 ) + bc)+ (b ^(2) -ca)/( b ^(2) + ca) + (c ^(...

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  4. If p^(4) = 119 - (1)/( p^(4)) then the value of p^(3) - (1)/( p^(3))...

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  5. The sum of the internal angles of a regular polygon is 1440^(@). The n...

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  6. ABCD is a regular trapezium in which AD || BC Diagonal AC and BD inter...

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  7. The distance between the centres of two circles having radii 8 cm and ...

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  8. Chords PQ and RS of a circle, when produced, meet at a point O. If PQ ...

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  9. The point of intersection for the diagonals AC and BD of the cyclic qu...

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  10. Three circles of radius 6 cm touches each other externally. Then the d...

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  11. In Delta ABC, AB = AC, O is a point on BC such that BO = CO and OD is ...

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  12. In an isosceles triangle, if the unequal angle is twice the sum of the...

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  13. ‘O' is the orthocentre of triangle ABC.Then angle BOC +angle BAC is eq...

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  14. In triangle ABC , the bisector of angle BAC intersects BC at D and the...

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  15. If sec theta-cos theta = 3/2 where theta is a positive acute angle. th...

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  16. tan(5x-10^(2))=cot(5y+20^(@)) then value of (x+y) is

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  17. From an aeroplane just over a straight road, the angles of depression ...

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  18. If sin theta +sin^2 theta=1, then the value of cos^12 theta +3cos^10 t...

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  19. The base of a triangle is 12 sqrt3 cm and two angles at the base are 3...

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  20. If a (tan theta+ cot theta )=1, sin theta +cos theta = b,then the rel...

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