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If 2p is the length of perpendicular fro...

If `2p` is the length of perpendicular from the origin to the lines `x/a+ y/b = 1,` then `a^2,8p^2,b^2` are in

A

A.p.

B

G.P.

C

H.P.

D

None of these

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The correct Answer is:
C
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DISHA PUBLICATION-STRAIGHT LINES AND PAIR OF STRAIGHT LINES-EXERCISE 1: CONCEPT BUILDER
  1. The medians AD and BE of the triangle with vertices A(0, b), B(0, 0) a...

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  2. Let 0 lt alpha lt (pi)/(2) be a fixed angle . If p=(costheta, sin the...

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  3. If 2p is the length of perpendicular from the origin to the lines x/a+...

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  4. Angle made with the x-axis by a straight line drawn through (1, 2) so ...

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  5. The distance of the point (1,2,3) form the coordinate axes are A,B and...

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  6. Find the tangent of the angel between the lines whose intercepts n the...

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  7. A straight line L through the point (3,-2) is inclined at an angle 60^...

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  8. Number of lines that can be drawn through the point (4,-5) so that its...

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  9. The straight line a x+b y+c=0 , where a b c!=0, will pass through the ...

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  10. If p(1) and p(2) are the lengths of the perpendicular form the orgin t...

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  11. A point moves so that the distance between the feet ofperpendiculars d...

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  12. The range of value of alpha such that (0,alpha) lies on or inside the ...

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  13. If P is a point (x ,y) on the line y=-3x such that P and the point (3,...

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  14. If the line y l=sqrt(3)x cuts the curve x^2=y^2+3x y+5x^2+3y^2+4x+5y-1...

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  15. The equation of a straight line, which passes through the point (a,0) ...

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  16. P(m, n) (where m, n are natural numbers) is any point in the interior ...

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  17. Find the distance between the parallel lines 3x 4y + 7 = 0and3x 4y ...

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  18. The value of h for which the equation 3x^2+2hxy-3y^2-40x+30y-75=0 repr...

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  19. If the slope of one of the lines represented by ax^(2)+2hxy+by^(2)=0 ...

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  20. The slopes of lines represented by x^2+2hxy+2y^2=0 are in the ratio 1:...

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