Which pair of functions have the same domain? A. F(x)= sin x and g(x) = tan x B. F(x) = cos x and f(x) = csc x C. G(x) = tan x and f(x) = cot x D. F(x) = cot x and f(x) = csc x

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Answer:

The correct choice is D

Step-by-step explanation:

The trigonometric functions, [tex]\sin x[/tex] and [tex]\cos x[/tex] are defined for all real numbers.

[tex]\tan x=\frac{\sin x}{\cos (x)}[/tex], this function is not defined where [tex]\cos x=0[/tex].

[tex]\cot x=\frac{\cos x}{\sin (x)}[/tex], this function is not defined where [tex]\sin x=0[/tex].

[tex]\csc x=\frac{1}{\sin (x)}[/tex], this function is not defined where [tex]\sin x=0[/tex].

For option A

The domain of [tex]f(x)=\sin(x)[/tex] is all real numbers.

The domain of g(x) =tanx is [tex]x\ne \frac{(2n+1)\pi}{2}[/tex]

For option B

The domain of [tex]f(x)=\cos(x)[/tex] is all real numbers.

The domain of f(x) =csc(x) is [tex]x\ne n\pi[/tex]

For option C,

The domain of G(x) =tanx is [tex]x\ne \frac{(2n+1)\pi}{2}[/tex]

The domain of f(x) =cot(x) is [tex]x\ne n\pi[/tex]

For option D;

The domain of f(x) =cot(x) is [tex]x\ne n\pi[/tex]

The domain of f(x) =csc(x) is [tex]x\ne n\pi[/tex]

Using it's concept, it is found that the functions that have the same domain are given by:

D. F(x) = cot x and f(x) = csc x

What is the domain of a function?

It is the set that contains all possible input values. In a fraction, for example, the denominator cannot be zero.

In this problem, we have that:

[tex]\cot{x} = \frac{\cos{x}}{\sin{x}}[/tex]

[tex]\csc{x} = \frac{1}{\sin{x}}[/tex]

That is, in both functions, the domain is all values of x except those for which [tex]\sin{x} = 0[/tex], hence option D is correct.

More can be learned about the domain of a function at https://brainly.com/question/25897115