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The value of (1)/( a^(2) + ax + x^(2)) ...

The value of `(1)/( a^(2) + ax + x^(2)) - (1)/( a^(2) - ax + x^(2)) + ( 2ax)/( a^(4) + a^(2) x^(2) + x^(4))` is

A

2

B

1

C

`-1`

D

0

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CHAMPION PUBLICATION-2013 TIER-II PAPER(20)-EXERCISE
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  2. Area of the triangle formed by the graph of the straight lines x-y=0,x...

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  3. The value of (1)/( a^(2) + ax + x^(2)) - (1)/( a^(2) - ax + x^(2)) + ...

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  4. If 4x + 5y = 83 and 3x : 2y = 21 : 22 then y - x equals

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  5. If x= 11, then the value of x^5 -12x^4 +12x^3 -12x^2+12x-1 is - यदि ...

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  6. If p=999, then the value of p(p^2+3p+3) is - यदि p=999, तो p(p^2+3p+...

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  7. Two chords of length 'a' meter and 'b' meter make an angle of 60^(@) a...

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  8. In a triangle ABC, angle A+1/2 angle B+angle C= 140^@, then angle B is...

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  10. If ABCD be a cyclic quadrilateral in which angle A = 4x^@, angle B = 7...

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  11. G is the centroid of the equilateral DeltaABC. If AB = 10 cm then leng...

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  12. Two chords AB and CD of a circle with centre O, intersect each other a...

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  13. ABCD is a cyclic quadrilateral and AD is a diameter. If /DAC = 55^@ th...

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  14. In triangle ABC a straight line parallel to BC intersects AB and AC at...

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  15. ABC is an isosceles triangle such that AB = AC and AD is the median to...

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  18. ABCD is a rectangle of which AC is a diagonal .The value of ...

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  19. If tan x = sin 45^@. cos 45^@ + sin30^@, then value of x is - यदि tan ...

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  20. For any real values of theta,sqrt((sectheta-1)/(Sectheta+1))=?

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