Explain bruefaly the types of functions ​

Function :

Explanation:

The function is a collection of steps which is used to perform some specific task. It holds the two curly braces in the definition which states the scope of the function means the starting and ending point of the function. This is of two types which are as follows:

Predefined function: The predefined function is defined by the compiler of that language which is designed to do some specific task. For example, in c-language, the printf function is used to display the output.

User-defined function: This type of function is defined by the programmer on that program to perform some specific task.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i