Niven's Theorem concerns the values taken by this function on certain rational inputs. This function
Niven's Theorem concerns the values taken by this function on certain rational inputs. This function is used to represent the imaginary part of a complex number when converting to polar coordinates and is denoted with the hyperbolic function e to the x minus e to the negative x divided by two. The Taylor series for this function is equal to zero when x equals zero and the inverse of this function is the (*) cosecant function. For 10 points, name this function which for an angle alpha of a triangle is equal to the ratio of opposite over hypotenuse.
Niven's Theorem concerns the values taken by this function on certain rational inputs.
{sine} function