What is a enveloping cone?

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Sunil Yadav

Physics & Mathematics Expert for JEE Mains,Advanced & Olympiads with 14 yrs experience

The locus of the tangent lines from a given point to a sphere is a cone called the enveloping cone from the point to the sphere. Imagine it like a conical cap on a sphere.
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The locus of tangent drawn from a fixed point to a sphere( or conicoid ) is a cone called enveloping cone or tangent from the point to the sphere.
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Math Teacher

Enveloping cone means 1. Its a cone, 2 its enveloped around the base diameter of a sphere. So its know as enveloping cone.
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Micro-Biologist

The locus of the tangent lines from a given point to a sphere is a cone called the enveloping cone from the point to the sphere.
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Tutor

In geometry, an envelope of a family of curves in the plane is a curve that is tangent to each member of the family at some point. Classically, a point on the envelope can be thought of as the intersection of two "adjacent" curves, meaning the limit of intersections of nearby curves.
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Teacher

An envelope of a family of curves in the plane is a curve that is tangent to each member of the family at some point. Classically, a point on the envelope can be thought of as the intersection of two "adjacent" curves, meaning the limit of intersections of nearby curves.
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Envelope of a family of curves in the plane is a curve that is tangent to each member of the family at some point. Classically, a point on the envelope can be thought of as the intersection of two "adjacent" curves, meaning the limit of intersections of nearby curves.
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CBSE and NIOS trainer with 20 years of experience also coaching engineering mathematics

Enveloping cone is nothing but a line of any curve which rotate or moves about fixed point gives a shape cone.
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Tutor

It means a cone enveloped around a sphere. The combination of these two referred as enveloping cone.
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Maths & Physics Teacher

In two dimensional geometry, two lines can be drawn from a point to a conic ie circle,parabola,ellipse or hyperbola. In space an infinite number of tangents can be drawn from a point to a conicaid, in particular a sphere. All these tangent lines generates a cone with the point as vertex. This cone is...
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In two dimensional geometry, two lines can be drawn from a point to a conic ie circle,parabola,ellipse or hyperbola. In space an infinite number of tangents can be drawn from a point to a conicaid, in particular a sphere. All these tangent lines generates a cone with the point as vertex. This cone is called enveloping cone or tangent cone. read less
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