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If the circles (x-a)^(2)+(y-b)^(2)=r^(2)...

If the circles `(x-a)^(2)+(y-b)^(2)=r^(2), (x-b)^(2)+(y-a)^(2)=r^(2)` touch each other then the point of contact is

A

`((a+b)/2,(a+b)/2)`

B

`((a-b)/2,(a-b)/2)`

C

`((b-a)/2,(b-a)/2)`

D

(0,0)

Text Solution

Verified by Experts

The correct Answer is:
A
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AAKASH SERIES-CIRCLES-EXERCISE II
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  7. The two circles x^(2)+y^(2)=ax, x^(2)+y^(2)=c^(2) (c gt 0) touch each ...

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  9. Lengths of common tangents of the circles x^(2)+y^(2)=6x,x^(2)+y^(2)+2...

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  11. The equation of the circle radius is 5 and which touches the circle x^...

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  12. Locus of the centre of circle of radius 2 which rolls on out side the ...

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  14. The centre of the circle passing through the points (0,0), (1,0) and t...

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  16. Find the area of the triangle formed by two tangents drawn from (3,5) ...

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  17. The area of the triangle formed by the tangent drawn at the point (-12...

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  18. If OA and OB are the tangent from the origin to the circle x^(2)+y^(2)...

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  19. Let AB be the chord 4x-3y+5=0 with respect to the circle x^(2)+y^(2)-2...

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