Sin-1

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Sin-1, SIN-1, sin-1, or sin−1 may refer to:

  • SIN-1, Linsidomine (3-morpholinosydnonimine), a drug acting as a vasodilator
  • sin x−1 = sin(x)−1 = −(1−sin(x)) = −cvs(x) or negative coversine of x, the additive inverse (or negation) of an old trigonometric function
  • sin−1y = sin−1(y), sometimes interpreted as arcsin(y) or arcsine of y, the compositional inverse of the trigonometric function sine (see below for ambiguity)
  • sin−1x = sin−1(x), sometimes interpreted as (sin(x))−1 = 1/sin(x) = csc(x) or cosecant of x, the multiplicative inverse (or reciprocal) of the trigonometric function sine (see above for ambiguity)
  • sin x−1, sometimes interpreted as sin(x−1) = sin(1/x), the sine of the multiplicative inverse (or reciprocal) of x (see below for ambiguity)
  • sin x−1, sometimes interpreted as (sin(x))−1 = 1/sin(x) = csc(x) or cosecant of x, the multiplicative inverse (or reciprocal) of the trigonometric function sine (see above for ambiguity)[citation needed]

See also[edit]