Inverse Trig Functions
The six functions sin^{1},
cos^{1},
tan^{1},
csc^{1},
sec^{1},
and cot^{1}.
These are also written arcsin, arccos, arctan, arccsc, arcsec,
and arccot.
Technical note: Since none of the six trig
functions sine,
cosine, tangent, cosecant, secant, and cotangent are onetoone,
their inverses are not functions. Each trig
function can have its
domain restricted, however, in order to make its inverse a function.
Some mathematicians write these restricted trig functions and their
inverses with an initial capital letter (e.g. Cos or Cos^{1}).
However, most mathematicians do not follow this practice. This
website does not distinguish between capitalized and uncapitalized
trig functions.
See
also
Inverse trigonometry
