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The two circles x^(2)+y^(2) = ax and x^(...

The two circles `x^(2)+y^(2) = ax` and `x^(2)+y^(2) = c^(2) ( c gt0)` touch each other , if

A

|a|=c

B

a=2c

C

|a|=2c

D

2|a|=c

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ARIHANT MATHS ENGLISH-CIRCLE -Exercise (Subjective Type Questions)
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  9. A tangent PT is drawn to the circle x^2 + y^2= 4 at the point P(sqrt3,...

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  14. A circle S passes through the point (0, 1) and is orthogonal to the ci...

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  15. Locus of the image of the point (2, 3) in the line (2x-3y""+""4)""+"...

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  16. The number of common tangents to the circles x^(2)+y^(2)-4x-6y-12=0 a...

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  17. The centres of those circles which touch the circle, x^2+y^2-8x-8y-4=0...

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  18. if one of the diameters of the circle, given by the equation, x^(2)+y^...

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  19. Let RS be the diameter of the circle x^2+y^2=1, where S is the point (...

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  20. For how many values of p, the circle x^(2)+y^(2)+2x+4y-p=0 and the coo...

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