Question
Mathematics Question on Trigonometry
If tan 48°.tan 23°.tan 42°.tan 67°=tan(A+30°), then the value of A is
A
30°
B
45°
C
60°
D
15°
Answer
15°
Explanation
Solution
The correct option is (D): 15°.
If tan 48°.tan 23°.tan 42°.tan 67°=tan(A+30°), then the value of A is
30°
45°
60°
15°
15°
The correct option is (D): 15°.