Question

x

Answer 1

well we know that cotangent is 1/tangent

tangent = sine/cosine, which means cotangent = cosine/sine

do you know cosine 45° and sine 45° is?

cot 45° = cos 45°/sin 45°

Answer 2

no i dnt

Answer 3

is the answer-7342

Answer 4

Not too hard.\[\cot 45^o=\frac{\cos45^o}{\sin45^o}\]If you think a little, you realize that at 45 degrees, sin and cosine are equal. This means\[\cot45^o=1\]

Answer 5

just memorize your unit circle