Q325
If cos(A - B) = 3 2 and sec A = 2, 0° ≤ A ≤ 90°, 0° ≤ B ≤ 90° then what is the measure of B?
If cos(A - B) = and sec A = 2, 0° ≤ A ≤ 90°, 0° ≤ B ≤ 90° then what is the measure of B?
A.
60°
B.
0°
C.
30°
AnswerD.
90°
Answer: Option C
Solution
Answer: Option C
Solution: