Relationships Among The Inverse Trigonometric Functions
Complementary angles:
Negative arguments:
Reciprocal arguments:
If you only have a fragment of a sine table:
Whenever the square root of a complex number is used here, we choose the root with the positive real part (or positive imaginary part if the square was negative real).
From the half-angle formula, we get:
Read more about this topic: Inverse Trigonometric Functions
Famous quotes containing the words inverse and/or functions:
“The quality of moral behaviour varies in inverse ratio to the number of human beings involved.”
—Aldous Huxley (18941963)
“Let us stop being afraid. Of our own thoughts, our own minds. Of madness, our own or others. Stop being afraid of the mind itself, its astonishing functions and fandangos, its complications and simplifications, the wonderful operation of its machinerymore wonderful because it is not machinery at all or predictable.”
—Kate Millett (b. 1934)