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If the points A(1,2) , B(0,0) and C (a,b...

If the points A(1,2) , B(0,0) and C (a,b) are collinear , then

A

a = b

B

a = 2b

C

2a = b

D

a = - b

Text Solution

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The correct Answer is:
C
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OSWAL PUBLICATION-LINES (IN TWO - DIMENSIONS)-NCERT EXEMPLAR (EXERCISE - 7.1)
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  2. The distance between the points A (-1,6) and B(2,2) is

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  3. The distance of the point P(-4,3) from the origin is

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  4. The distance between the points (-5,0) and (0,5) is units.

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  5. AOBC is a rectangle whose three vertices are A(0,-3), O(0,0) and B (4,...

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  6. The perimeter of a tringle with vertices (0,4),(0,0) and (3,0) is

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  7. The area of a triangle with vertices A(3,0),B(7,0) and C(8,4) is

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  8. The points (-4,0),(4,0) and (0,3) are the verticess of a

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  9. The point which divides the line segment joining the points (7,-6) and...

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  10. The point which lies on the perpendicular bisector of the line segment...

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  12. If the point P(2,1) lies on the line segment joining points A (4,2) an...

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  13. If P((a)/(3),4) is the mid - point of the line segment joining the poi...

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  14. The perpendicular bisector of the line segment joining the points A(1,...

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  15. The coordinates of the point which is equidistant from the three verti...

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  16. If a circle drawn with origin as the centre passes through (13/(2),0)...

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  17. A line intersects the Y- axis and X-axis at the points P and Q, respec...

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  18. The area of a triangle with vertices (a,b+c), (b,c+a) and (c,a+b) is

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  19. If the distance between the points (3,6) and (p,10) is 2sqrt5, then th...

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  20. If the points A(1,2) , B(0,0) and C (a,b) are collinear , then

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