The value of the expression [Cot1°. Cot2°. Cot3°. Cot4°. Cot5°.... Cot178° Cot179°]
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 0.
Given that,
Cot1°. Cot2°. Cot3°. Cot4°. Cot5°.... Cot178° Cot179°
We know that cot 90° = 0
Thus, the value of Cot1°. Cot2°. Cot3°. Cot4°. Cot5°.... Cot178° Cot179° = 0