If a 45° and b = 15°, what is the value of $\frac{cos(a - b) - cos(a + b)}{cos(a - b) + cos(a + b)}$?
Answer & explanation
Correct answer: option 4
A detailed explanation for this question is coming soon.
If a 45° and b = 15°, what is the value of $\frac{cos(a - b) - cos(a + b)}{cos(a - b) + cos(a + b)}$?
Correct answer: option 4
A detailed explanation for this question is coming soon.