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Post date: Jul 13, 2020 10:54:06 PM
Manhattan (/mænˈhætən, mən-/), often referred to by residents of the New York City area as the City, is the most densely populated of the five boroughs of New York City, and coextensive with the County of New York, one of the original counties of the U.S. state of New York. Manhattan serves as the city's economic and administrative center, cultural identifier,[5] and historical birthplace.[6] The borough consists mostly of Manhattan Island, bounded by the Hudson, East, and Harlem rivers; as well as several small adjacent islands. Manhattan additionally contains Marble Hill, a small neighborhood now on the U.S. mainland, that was connected using landfill to the Bronx and separated from the rest of Manhattan by the Harlem River.
Manhattan Island as an EARTH LAB
atomic integrated circuit board …..
Below, Manhattan …… atomic electron structures of stone, brick and iron ……. ….. Electron apartment and office buildings
as component of the EARTH geography ISLAND as a MOTHER BOARD.
www.haverford.edu/physics/.../Trig_Ident.pdf
Haverford College
Trigonometric Identities. 1. Trigonometric Identities. Basic Identities: sin θ = y r. ( 1 ) cos θ = x r. ( 2 ) tan θ = y x = sin θ cosθ. ( 3 ) cot θ = x y. = cos θ sinθ. = 1 tan θ.
www. math openref.com/ trigtangent .html
The tangent function , along with sine and cosine, is one of the three most common trigonometric functions . In any right triangle, the tangent of an angle is the ...
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