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The Tamil Nadu Public Service Commission (TNPSC) is a government body of the state of Tamil Nadu, India, responsible for the recruitment of candidates for various state government jobs through competitive examinations. It is the successor of the Madras Service Commission, which came into being under an Act of the Madras Legislature in 1929 and ...
Direct Recruitment through a competitive examination called the "TNPSC Group 1 to 8 Exam", organized by the Tamil Nadu Public Service Commission (TNPSC). Recruitment by Transfer from exiting Service Employment by Agency
Vacancies in the TNAS occur annually due to retirement and IAS promotion to the Revenue Administration Disaster Management and Mitigation Department.Civil Servants are recruited to the Tamil Nadu Administrative Service in two ways: directly, through the TNPSC Group 1 Exam organized by the Tamil Nadu Public Service Commission, and by Transfer from the Tamil Nadu Revenue Subordinate Service or ...
For example, the group underlying mirror symmetry is the cyclic group of two elements, /. A Rorschach test is a figure invariant by this symmetry, [ 203 ] as are butterfly and animal bodies more generally (at least on the surface). [ 204 ]
A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...
The surface area of a polyhedron is the sum of areas of its faces, for definitions of polyhedra for which the area of a face is well-defined. The geodesic distance between any two points on the surface of a polyhedron measures the length of the shortest curve that connects the two points, remaining within the surface.
The simplest results are those in the differential geometry of curves and differential geometry of surfaces. Starting with the work of Riemann , the intrinsic point of view was developed, in which one cannot speak of moving "outside" the geometric object because it is considered to be given in a free-standing way.
For example, assuming the Earth is a sphere of radius 6371 km, the surface area of the arctic (north of the Arctic Circle, at latitude 66.56° as of August 2016 [7]) is 2π ⋅ 6371 2 | sin 90° − sin 66.56° | = 21.04 million km 2 (8.12 million sq mi), or 0.5 ⋅ | sin 90° − sin 66.56° | = 4.125% of the total surface area of the Earth.