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Asked Sep 27, 2019

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Step 1

*Calculation:*

Compute the domain and the range of the function y = cos(x) as follows.

It is known that the value of cos(x) lies between −1 and 1 for all real values of *x*.

Thus, the domain of y = cos(x) is the set of all real numbers.

Range of y = cos(x) is set of all real numbers from −1 to1.

Compute the domain and the range of the function y = tan(x) as follows.

Rewrite y = tan(x) as y = sin(x)/cos(x).

Since cos(0) = 0, the function is undefined for all integer multiplies of π and for 0.

Thus, the domain of y = cot(x) is the set of all real numbers ...

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