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13

Step-by-step Answer
PAGE: 261SET: ExercisesPROBLEM: 13
Please look in your text book for this problem Statement

The trigonometric function is and the range is .

Find the inverse of by interchanging and .

Thus, the inverse function is .

This is the equation of the inverse cosine relation.

Draw a coordinate plane.

Graph the two functions and in the same coordinate plane on the interval .

Graph :

graph of trigonometric equation y = cos(x), x = cos(y) and line y = x

Observe the graph of the functions :

The graph of is reflect the line to obtain t he graph of .

Graph :

graph of trigonometric equation y = cos(x), x = cos(y) and line y = x



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