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The angle between the lines 2x = 3y=-z a...

The angle between the lines 2x = 3y=-z and 12x=-2y=-8z is:

A

`60^@`

B

`45^@`

C

`90^@`

D

`30^@` .

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MODERN PUBLICATION-CONIC SECTIONS-EXERCISE
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  2. The angle between the tangents drawn from the origin to the parabola y...

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  3. The angle between the lines 2x = 3y=-z and 12x=-2y=-8z is:

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  4. The centres of 3 circles x^2+y^2 =1, x^2+y^2 +6x-2y=1, x^2+y^2-12x+4y=...

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  9. The length of the chord joining the points (4 cos theta 4 sin theta) a...

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  10. The number of common tangents to the circles x^2+y^2-y=0 and x^2+y^2+y...

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  11. The co-ordinates of the centre of the smallest circle passing through ...

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  12. The length of the diameter of the circle which cuts three circles : x^...

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  13. For the parabola y^2 = 4x, the point P whose focal distance is 17, is ...

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  14. The angle between the tangents drawn from origin to the parabola y^2= ...

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  15. The number of values of c such that the straight line y=4x+c touches t...

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  16. If the circle x^2+y^2=a^2 intersects the hyperbola x y=C^2 at four poi...

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  17. The foot of the perpendicular from the point (2, 4) upon x + y= 4 is:

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  18. The vertices of a triangle are (6, 0), (0, 6) and (6, 6). Then distanc...

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  19. The angle between the pair of lines : x^2+2xy-y^2=0 is :

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  20. In an ellipse, if the lines joining focus to the extremities of the mi...

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