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The straight line y=mx+c cuts the circle...

The straight line y=mx+c cuts the circle `x^2+y^2=a^2` at real points if

A

`sqrt(a^2(1+m^2))le|c|`

B

`sqrt(a^2(1-m^2))le|c|`

C

`sqrt(a^2(1+m^2))gt|c|`

D

`sqrt(a^2(1-m^2))gt|c|`

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PATHFINDER-CIRCLE-QUESTION BANK
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  11. The co-ordinates of two points P and Q are (x1,y1) and (x2,y2) and O i...

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  12. Consider a family of circle which are passing through the point (-1,1)...

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  13. If r1and r2 are the radii of smallest and largest circles which passes...

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  14. The two circles which passes through (0,a) and (0,-a) and touch the li...

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  17. AB is a diameter of a circle and 'C' is any point on the circumference...

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  18. The centres of a set of circles, each of radius 3 , lie on the circle ...

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  19. A circle touches the x-axis and also touches the circle with centre (0...

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  20. A square is inscribed in the circle x^2+y^2-2x+4y-93=0 with its sides ...

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