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The equation of the circumcircle of an e...

The equation of the circumcircle of an equilateral triangle is `x^2+y^2+2gx+2fy+c=0` and one vertex of the triangle in (1, 1). The equation of the incircle of the triangle is `a. 4(x^2+y^2)=g^2+f^2` `b. 4(x^2+y^2)+8gx+8fy=(1-g)(1+3g)+(1-f)(1+3f)` `c. 4(x^2+y^2)+8gx+8fy=g^2+f^2` d. None of These

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
  1. The distance from the center of the circle x^2+y^2=2x to the common ch...

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  2. The circle passing through the point (-1,0) and touching the y-axis at...

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

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  4. A circle with radius |a| and center on the y-axis slied along it and a...

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  5. If the angle of intersection of the circle x^2+y^2+x+y=0 and x^2+y^2+x...

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  6. The range of values of alpha for which the line 2y=gx+alpha is a norma...

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

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  8. Consider a circle x^2+y^2+a x+b y+c=0 lying completely in the first q...

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  9. The equation of the circle passing through the point of intersection ...

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

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  11. The coordinates of two points Pa n dQ are (x1,y1)a n d(x2,y2)a n dO is...

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  12. The area of the triangle formed by the positive x-axis with the norma...

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  13. If the circle C1: x^2 + y^2 = 16 intersects another circle C2 of radiu...

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  14. A circle touches the line y = x at point P such that OP = 4 sqrt2, Cir...

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  15. Let AB be a chord of the circle x^2+y^2=r^2 subtending a right angle a...

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  16. Let P Q and R S be tangent at the extremities of the diameter P R of...

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  17. Find the coordinates of the point at which the circles x^2+y^2-4x-2y+4...

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  18. Let A B be chord of contact of the point (5,-5) w.r.t the circle x^2+y...

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  19. Let P be any moving point on the circle x^2+y^2-2x=1. A B be the chord...

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