Question

cot 12° cot 38° cot 52° cot 60° cot 78° का मान हैं
(A) 0
(B) 1
(C) ½
(D) 1/√3

Answer 1

cot12°×cot38°×tan(90°-52°)×cot60°×tan(90°-78°)
cot12°×cot38°×tan38°×cot60°×tan12°
cot60° = 1/√3
please mark it as the brainliest answer