What is the value of cot(90°)? (2018)

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Question: What is the value of cot(90°)? (2018)

Options:

Correct Answer: undefined

Exam Year: 2018

Solution:

cot(90°) = 1/tan(90°) = 1/0 = undefined.

What is the value of cot(90°)? (2018)

What is the value of cot(90°)? (2018)

Step 1: Understand what cotangent means. Cotangent (cot) is the reciprocal of tangent (tan).
Step 2: Recall the angle we are working with, which is 90 degrees.
Step 3: Find the value of tan(90°). The tangent of 90 degrees is 0.
Step 4: Use the definition of cotangent: cot(90°) = 1/tan(90°).
Step 5: Substitute the value of tan(90°) into the equation: cot(90°) = 1/0.
Step 6: Recognize that dividing by zero is not possible, which means the value is undefined.

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