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If r1a n dr2 are the radii of the smalle...

If `r_1a n dr_2` are the radii of the smallest and the largest circles, respectively, which pass though (5, 6) and touch the circle `(x-2)^2+y^2=4,` then `r_1r_2` is `4/(41)` (b) `(41)/4` `5/(41)` (d) `(41)/6`

A

`(4)/(41)`

B

`(41)/(4)`

C

`(5)/(41)`

D

`(41)/(5)`

Text Solution

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The correct Answer is:
B
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ARIHANT MATHS-CIRCLE -Exercise (Single Option Correct Type Questions)
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  3. If r1a n dr2 are the radii of the smallest and the largest circles, re...

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  5. If P(2,8) is an interior point of a circle x^(2)+y^(2)-2x+4y-lamda=0 w...

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  6. The difference between the radii of the largest and smallest circles w...

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  7. The number of rational point(s) [a point (a, b) is called rational, if...

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  8. Three sided of a triangle have equations L1-=y-mi x=o; i=1,2a n d3. Th...

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  12. S(x,y)=0 represents a circle. The equation S(x,2)=0 gives two identica...

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  13. Let 0 lt alpha lt (pi)/(2) be a fixed angle . If p=(costheta, sin the...

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  14. Find the number of point (x ,y) having integral coordinates satisfying...

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  15. The point ( [P + 1] , [P] ) (where [.] denotes the greatest integer fu...

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  16. A point Plies inside the circles x^2+y^2-4=0 and x^2+y^2-8x+7=0. The...

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  17. The set of values of 'c' so that the equations y=|x|+c andx^(2)+y^(2)-...

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  18. If a line segement A M=a moves in the plane X O Y remaining parallel t...

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  19. Show that the four points of intersection of the lines : (2x-y + 1) (x...

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