Questions tagged 'Sphere'

• Equation $a{{x}^{2}}+b{{y}^{2}}+c{{z}^{2}}+2fyz+2gxz+2hxy$ and $+2ux+2vy+2wz+d=0$ represents a sphere, if
  Category: 3-d | Tags: Sphere
• A point moves so that the sum of its distances from the points (4, 0, 0) and (–4, 0, 0) remains 10. The locus of the point is
  Category: 3-d | Tags: Sphere
• A point moves so that the sum of the squares of its distances from two given points remains constant. The locus of the point is
  Category: 3-d | Tags: Sphere
• The equation ${{x}^{2}}+{{y}^{2}}+{{z}^{2}}=0$represents
  Category: 3-d | Tags: Sphere
• The locus of the equation ${{x}^{2}}+{{y}^{2}}+{{z}^{2}}+1=0$is
  Category: 3-d | Tags: Sphere
• The centre of sphere passes through four points (0, 0, 0), (0, 2, 0), (1, 0, 0) and (0, 0, 4) is
  Category: 3-d | Tags: Sphere
• The equation of the sphere touching the three co-ordinate planes is
  Category: 3-d | Tags: Sphere
• Let (3, 4, –1) and (–1, 2, 3) are the end points of a diameter of sphere. Then the radius of the sphere is equal to
  Category: 3-d | Tags: Sphere
• Co-ordinate of a point equidistant from the points (0,0,0), (a, 0, 0), (0, b, 0), (0, 0, c) is
  Category: 3-d | Tags: Sphere
• How many different sphere of radius ‘r’ can be drawn which touches all the three co-ordinate axes
  Category: 3-d | Tags: Sphere

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