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If a + b + c =0 then the value of (1)/...

If a + b + c =0 then the value of
`(1)/((a + b ) (b + c)) + (1)/( (b + c ) (c + a)) + (1)/((c+ a) (a+ b))`

A

0

B

1

C

3

D

2

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CHAMPION PUBLICATION-2016 TIER-II PAPER(15)-EXERCISE
  1. A right circular cylinder having diameter 21 cm and height 38 cm s ful...

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  2. The simplified value of (1- ( 2xy )/( x ^(2) + y ^(2))) div ((x ^(3)...

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  3. If a + b + c =0 then the value of (1)/((a + b ) (b + c)) + (1)/( (b ...

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  4. If x^2+y^2+2x+1=0, then the value of x^31+y^35 is यदि x^2+y^2+2x+1...

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  5. If a= (sqrt5+1)/(sqrt5-1) and b=(sqrt5-1)/(sqrt5+1) then the value of ...

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  6. If (x-1/x)^2=3 then the value of x^6+1/x^6 equals यदि (x-1/x)^2=3 त...

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  7. If x^(4)+2x^(3)+ax^(2)+bx+9 is a perfect square, where a and b are po...

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  8. If a ^(2) + b ^(2) + c ^(2) = 16, x ^(2) + y ^(2) + z^(2) = 25 and ax...

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  9. The value of x which satisfies the equation (x+a^(2)+2c^(2))/(b+c)+(x+...

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  10. If a ^(3) = 117 + b ^(3) and a = 3 + b,then the value of a + b is :

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  11. If a + (1)/(a) = - 2 then the value of a ^(1000) + a ^(-1000) is

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  12. triangle ABC is similar to triangle DEF. If area of triangle ABC is 9 ...

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  13. A chord of a circle is equal to its radius. The angle subtended by thi...

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  14. Let two chords AB and AC of the larger circle having same centre touch...

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  15. Let G be the centroid of the equilateral triangle ABC of perimeter 24 ...

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  16. A and B are the centers of two circles with radii 11 cm and 6 cm respe...

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  17. ABC is an isosceles triangle inscribed in a circle. If AB = AC 12sqrt"...

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  18. ABC is isosceles triangle where AB = AC which is circumscribed about a...

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  19. If D and E are the mid points of AB and AC respectively of DeltaABC, t...

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  20. O is the circumentre of the isosceles triangle ABC. Given that AB= AC ...

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