Which of the functions have a range of real numbers greater than or equal to 1 or less than or equal to-1

The question is incomplete. Here is the complete question:

Which of the functions have a range of all real numbers greater than or equal to 1 or less than or equal to -1? check all that apply.

A.

B.

C.

D.

A.

D.

Step-by-step explanation:

Given:

The range is greater than or equal to 1 or less than or equal to -1.

The given choices are:

Choice A:

We know that, the

The range of is from -1 to 1 given as [-1, 1]. So,

Therefore, on removing the absolute sign, we rewrite the secant function as:

Therefore, the range of is all real numbers greater than or equal to 1 or less than or equal to-1.

Choice B:

We know that, the range of tangent function is all real numbers. So, choice B is incorrect.

Choice C:

We know that, the range of cotangent function is all real numbers. So, choice C is incorrect.

Choice D:

We know that, the

The range of is from -1 to 1 given as [-1, 1]. So,

Therefore, on removing the absolute sign, we rewrite the cosecant function as:

Therefore, the range of is all real numbers greater than or equal to 1 or less than or equal to-1.

answer: f true

step-by-step explanation:

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