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The names exsecant, versine, chord, etc. can also be applied to line segments related to a circular arc. [2] The length of each segment is the radius times the corresponding trigonometric function of the angle. The external secant function (abbreviated exsecant, symbolized exsec) is a trigonometric function defined in terms of the secant function:
A last stand is a last-resort tactic that is used if retreat or surrender is impossible or fighting is essential to the success of the cause. The defending force is most likely defeated, but it sometimes survives long enough for reinforcements to arrive that force the retreat of the attackers; it can even occasionally force the enemy away by ...
Sec-1, SEC-1, sec-1, or sec −1 may refer to: . sec x−1 = sec(x)−1 = exsec(x) or exsecant of x, an old trigonometric function; sec −1 y = sec −1 (y), sometimes interpreted as arcsec(y) or arcsecant of y, the compositional inverse of the trigonometric function secant (see below for ambiguity)
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The ordinary sine function (see note on etymology) was sometimes historically called the sinus rectus ("straight sine"), to contrast it with the versed sine (sinus versus). [37] The meaning of these terms is apparent if one looks at the functions in the original context for their definition, a unit circle :
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Last Quarter (Japanese: 下弦の月, Hepburn: Kagen no Tsuki) is a Japanese manga series written and illustrated by Ai Yazawa. It was serialized in Shueisha 's shōjo manga magazine Ribon from the April 1998 to June 1999 issues.
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