The ACOSH function returns inverse hyperbolic cosine of the given number. Inverse hyperbolic cosine is nothing but a value and its hyperbolic cosine is a number.
Whereas "Number" is the value whose inverse hyperbolic cosine value has to be found. It should be greater than or equal to 1.
Let us find the inverse hyperbolic cosine value of the given number, using the ACOSH function, with the help of the below video.