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The centre of circle inscribed in a s...

The centre of circle inscribed in a square formed by lines `x^2-8x+12=0a n dy^2-14 y+45=0` is `(4,7)` `(7,4)` `(9,4)` `(4,9)`

A

(4,7)

B

(7,4)

C

(9,4)

D

(4,9)

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The correct Answer is:
A
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FIITJEE-CIRCLE-Assignment Problems (Objective) Level -I
  1. Equation of a circle with centre(4,3) touching the circle x^2+y^2=1

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  2. Find the co-ordinate of the point on the circle x^2+y^2-12x-4y +30=0, ...

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  3. The centre of circle inscribed in a square formed by lines x^2-8x+1...

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  4. From any point on the circle x^(2)+y^(2)=a^(2) tangents are drawn to t...

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  5. The equation of the circumcircle of an equilateral triangle is x^2+y^2...

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  6. Four distinct points (2K,3K),(1,0),(0,1) and (0,0) lie on circle when

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  7. A line is drawn through a fixed point P(alpha, B) to cut the circle x...

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  8. The line 4x+3y-4=0 divides the circumference of the circle centred at ...

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  9. The maximum distance of the point (4,4) from the circle x^2+y2-2x-15=0...

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  10. If the circle x^2+y^2+4x+22y+l=0 bisects the circumference of the circ...

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  11. A, B C and D are the points of intersection with the coordinate axes o...

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  12. If the length of the tangents from any point on the circle 15x^(2)+15y...

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  13. ) Six points(x,yi),i=1,2, ,.., 6 are taken on the circle x4 such that ...

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  14. The circles x^2+y^2+x+y=0 and x^2+y^2+x-y=0 intersect at an angle of

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  15. The centers of a set of circles, each of radius 3, lie on the circle x...

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  16. The chords of contact of the pair of tangents drawn from each point on...

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  17. Equation of a circle S(x,y)=0 , (S(2,3)=16) which touches the line 3x+...

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  18. Find the number of common tangents that can be drawn to the circles...

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  19. Equation of the straight line meeting the cirle with centre at origin ...

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  20. If y=f(x)=ax+b is a tangent to circle x^2+y^2+2x+2y-2=0 then the value...

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