Trigonometric functions, rational functions, hyperbolic functions, and log functions are some examples of having inverse.
The inverse of a function is basically a reverse function or undo of the function.
For example y = f(x) then the inverse will be x = f(y).
It means in the inverse function we need to interchange x and y.
Suppose a function,
y = sinx here x is the angle while y is the real number.
Now, x = sin⁻(y) here sin⁻(y) is a function of x as inverse.
Another example y = 2x
x = 2/y if x is output then it will be inverse.
Hence "Trigonometric functions, rational functions, hyperbolic functions, and log functions are some examples of having inverse".
For more information about the inverse of a function,
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