Most important topic for NUST (NET) Math portion.
In this video I’ll explain basic concepts of conic sections and all about circle for Entry Test point of view.

00:00 Intro
00:47 Conic section introduction/ conic sections terms
02:46 Conic sections 3D animation/ what are conic sections in math
06:19 Conic section circle
07:14 Conic section ellipse
07:24 Conic section Parabola
07:41 Conic section hyperbola
08:19 Circle standard form/ circle standard equation
10:13 How to find equation of a circle
12:56 How to find equation of circle passing through three points
16:42 General form of equation of circle
19:13 How to find center and radius of circle
24:02 Position of a point with respect to a circle
25:41How many tangents can be drawn from an external point to the circle?
26:11How many tangents can be drawn to a circle at a point lying on the circle?
26:43 Length of tangent drawn from an external point to a circle
30:08 When two circle touch internally and externally?
33:07 Equation of tangent and normal to the circle
44:30 When a line is tangent to a circle? (Condition of tangency)


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