Question Detail

MTH 101 MTH 101 Past Questions Objective Question
Take CBT

Question

Which expression is equal to cos (a-β)?
Options
A cos a cos β + sin a sin β
Correct Answer
B cos a cos β - sin a sin β
C sin a cos β - cos a sin β
D tan a - tan β
Correct Answer

Option A is the correct answer.

Detailed Explanation

The difference formula for cosine is cos (a-β) = cos a cos β + sin a sin β.

Hint

The notes indicate answer A.

Question Info

Course: MTH 101
Topic: MTH 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 135 of 696
Previous Course Details Next