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A line of slope lambda(0<lambda<1) touch...

A line of slope `lambda(0

A

`2 lamda`

B

`(2 lamda)/(-1 + lamda ^(2))`

C

`(1 - lamda ^(2))/(1 + lamda ^(2))

D

none of these

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The correct Answer is:
B
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FIITJEE-MATHEMATICS -OBJECTIVE
  1. x ^(2) (lamda ^(2) - 4 lamda + 3) +y ^(2) (lamda ^(2) - 6 lamda +5) =1...

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  2. For all real values of a and b lines (2a + b) x + (a + 3b) y + (b - 3a...

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  3. A line of slope lambda(0<lambda<1) touches the parabola y+3x^2=0 at Pd...

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  4. Normals at two points (x1y1)a n d(x2, y2) of the parabola y^2=4x meet ...

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  5. If A (3,1) and B (-5,7) are any two given points, If P is a point one ...

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  6. Let f (x) = sin x - ax and g (x) - sin x - bx, where 0 lt a,b, lt 1 Su...

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  7. If sin ^(-1)((1 - x ^(2))/(1 + x ^(2)))+ cos ^(-1) ((2x )/(1 +x ^(2)))...

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  8. From a point P outside a circle with centre at C, tangents PA and PB a...

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  9. the equation of the radical axis of the two circles 7x^2+7y^2-7x+14y+...

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  10. Point on the curve y ^(2) = 4 (x -10) which is nearest to the line x ...

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  11. If (t,0) is point on diameter of circle x ^(2) + y ^(2) =4, then the e...

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  12. The locus of mid-point of family of chords lamda x + y - 5 =0 (paramet...

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  13. If the tangents at two points (1,2) and (3,6) on a parabola intersect ...

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  14. In triangle ABC, angle C = 120^(@). If h be the harmonic mean of the l...

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  15. sin ((1)/(5) cos ^(-1) x)=1 has

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  16. The circle C has radius 1 and touches the line L and P. The point X li...

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  17. Let E be the ellipse (x^2)/9+(y^2)/4=1 and C be the circle x^2+y^2=9 ....

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  18. An ellipse has the points (1, -1) and (2,-1) as its foci and x + y = 5...

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  19. Let K = 1 ^(@), then 2 sin 2K + 6 sin 6K + ….+ 180 sin 180 k is equal...

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  20. The maximum area of a traingle whose sides a,b,c satify 0 le a le 1,1 ...

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