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If d(1) and d(2) are the longest the sho...

If `d_(1)` and `d_(2)` are the longest the shortest distance of (-7,2) from any point `(alpha, beta)` on the curve whose equation is `x^(2)+y^(2)-10x-14y=51` then G.M. of `d_(1)` and `d_(2)` is

A

`sqrt(11)`

B

7

C

2

D

`2sqrt(11)`

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AAKASH SERIES-CIRCLES-EXERCISE II
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  3. If d(1) and d(2) are the longest the shortest distance of (-7,2) from ...

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  4. Equation of circle passing through (1,sqrt(3)), (1,-sqrt(3)) and (3,-s...

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  5. The equation of the circle of radius 3 that lies in 4th quadrant and t...

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  6. If the points (2,0) (0,1), (4,0) and (0,a) are concylic then a=

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  7. If O=(0,0),A=(1,0) and B=(1/2,(sqrt(3))/2) then centre of circle for w...

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  8. The circle passing through (5,-5),(1,7),(-7,1) is

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  9. ABCD is a square with side a. If AB and AD are taken as positive coord...

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  10. Centre of circle passing through A(0,1), B(2,3), C(-2,5) is

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  11. Centre of the circle circumscribed in a rectangle formed by the lines ...

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  12. If the lines 2x+3y+1=0, 6x+4y+1=0 intersect the co-ordinate axes in 4 ...

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  13. Two rods of legths a and b slide along coordinate axes. Such that thei...

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  14. If a line through P(-2,3) meets the circle x^(2)+y^(2)-4x+2y+k=0 at A ...

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  15. The locus of centre of a circle which passes through the origin and cu...

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  16. Equation of circle with centre (3,-1) and which cuts off a chord of le...

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  17. If the line 3x-4y=lamda cuts the circle x^(2)+y^(2)-4x-8y-5=0 in two p...

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  18. If a chord of the circle x^(2)+y^(2)=8 makes equal intercepts of lengt...

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  19. If the chord y=mx+1 of the circle x^(2)+y^(2)=1 subtends an angle of m...

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  20. The triangle PQR is incribed in the circle x^(2)+y^(2)=25.If Q=(3,4) a...

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