y = sin(x)
Yes, but it is called a hyberbolic trigonometric function
TRIGONOMETRIC FUNCTIONS OF ANY ANGLE
It is a trigonometric function. It is also continuous.
The product of any object and its reciprocal is always the identity. In the case of numbers, 1 (one).
The trigonometric function of an angle gives a certain value The arc trigonometric function of value is simply the angle For example, if sin (30 degrees) = 0.500 then arc sine ( 0.500) = 30 degrees
An antitrigonometric function is another term for an inverse trigonometric function.
opposite/hypotenuse
A reciprocal trigonometric function is the ratio of the reciprocal of a trigonometric function to either the sine, cosine, or tangent function. The reciprocal of the sine function is the cosecant function, the reciprocal of the cosine function is the secant function, and the reciprocal of the tangent function is the cotangent function. These functions are useful in solving trigonometric equations and graphing trigonometric functions.
You only use the seccant trigonometric function.
Cotangent is a trigonometric function. It is the reciprocal of the tangent.
cot(A+B+C) is, itself, a trigonometric function, so the question does not really make any sense!