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The distance between the points (costhet...

The distance between the points `(costheta,sintheta)`and `(sintheta,-costheta)`is
a)1 b)2 c)`sqrt2` d)`sqrt3`

A

1

B

2

C

`sqrt2`

D

`sqrt3`

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R G PUBLICATION-CO-ORDINATE GEOMETRY-EXERCISE
  1. What is the image of point (2,-3) under x-axis?

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  2. The distance between the points A(2,-3) and B(2,2) is a)2 units b)3 ...

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  3. The distance of the point P(-6,8) from the origin is a)2 b)5 c)10 ...

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  4. The distance between the points (costheta,sintheta)and (sintheta,-cost...

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  5. The distance of the point (4,7) from the x-axis is a)7 b)4 c)sqrt...

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  6. The distance of the point (4,7) from the y-axis is a)7 b)4 c)sqrt(6...

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  7. If the pointP(x,y) is equidistant from A(5,1) and B(-1,5) is,then

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  8. The two vertices of a triangle are A(6,3) and B(-1,7) and its centroid...

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  9. If A(0,3),B(3,6) and C(6,9) are the vertices of a triangle then its ce...

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  10. If three points (0,0),(-3,-6) and (3,x) form an equilateral triangle t...

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  11. If P(a/3,4) is the midpoint of the line segment joining A(-6,5) and B(...

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  12. If P(-1,1) is the midpoint of the line segment joining A(-3,b) and B(1...

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  13. x-axis divide the line segment joining A(2,-3) and B(5,6) in the ratio

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  14. y-axis divide the line segment joining A(-4,2) and B(8,3) in the ratio

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  15. A(-4,0),B(4,0) and C(0,3) are the vertices of - a)an Equilateral tria...

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  16. If A(2,2),B(-4,-4) and C(5,-8) are the vertices of a triangle then the...

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  17. If the centroid of a triangle is (1,4) and two of its vertices are (4,...

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

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  19. If the points A(2,3),B(5,k) and C(6,7) are collinear then k is

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  20. The area formed by A(a,b+c),B(b,c+a) and C(c,a+b) is

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