Question

Sin 70 = a, find the value of cot 70​

Answer 1

Answer:

√(1-a²)/a

Step-by-step explanation:

Sin 70 = a

therefore opposite side = a

Hypotenuse = 1

and adjacent side  will be √(1 - a²)

therefore cos 70 = √(1-a²)

hence cot 70 = √(1-a²)/a