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If the lines x+2ay+a=0, x+3by+b=0 and x...

If the lines `x+2ay+a=0, x+3by+b=0` and `x+4cy+c=0` are concurrent, then a, b, c are in:

A

`A`.P

B

H.P

C

G .P

D

none of these

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The correct Answer is:
B
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HIMALAYA PUBLICATION-COORDINATE SYSTEMS, LOCUS AND STRAIGHT LINES-QUESTION BANK
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  2. If a, b, c are in A. P., then st. line ax+by+c=0 will always pass thro...

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  3. If the lines x+2ay+a=0, x+3by+b=0 and x+4cy+c=0 are concurrent, then ...

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  4. A line passing through P(3,4) meets the x -axis and y -axis at A and B...

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  6. If two sides of a triangle are represented by : 2x-3y+4=0 and 3x+2y-...

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  7. The distance of the point (1, 2) from the line x+y=0 measured parallel...

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  8. A and B are two fixed points. The locus of the point P such that A hat...

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  9. Equation of the bisector of the obtuse angle between the lines 4 x+3 y...

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  10. If one of the diagonals of a square is along the line x=2 y and one of...

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  11. The line parallel to the x axis and passing through the intersection o...

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  12. If the point P (x, y) is equidistant from the points A (a + b, b - a) ...

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  13. If the points (a^(2), 0),(0, b^(2)) and (1,1) are collinear then

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  18. The area of the figure formed by a|x|+b|y|+c=0 is

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  20. The inclination of the line x-y+3=0 with the positive direction of x-a...

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