Question
Mathematics Question on Trigonometric Equations
If cot 20° tan (90° A) = 1, than value of A is :
A
50°
B
45°
C
70°
D
60°
Answer
70°
Explanation
Solution
The correct answer is (C) : 70°.
If cot 20° tan (90° A) = 1, than value of A is :
50°
45°
70°
60°
70°
The correct answer is (C) : 70°.