Question Detail

MTH 101 MTH 101 Past Questions Objective Question
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Question

What is cos (-a) equal to?
Options
A -cos a
B sin a
C cos a
Correct Answer
D -sin a
Correct Answer

Option C is the correct answer.

Detailed Explanation

cos (-a) = cos a (cosine is an even function).

Hint

The notes indicate answer C.

Question Info

Course: MTH 101
Topic: MTH 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 139 of 696
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