関連ワード:  what is the inverse of cot x    what is the opposite of cot x    what is tan inverse of cot x    what is the graph of cot inverse of cot x    what is the derivative of cot inverse x    what is the differentiation of cot inverse x    what is the range of cot inverse x    what is the domain of cot inverse x    what is the formula of cot inverse x    what is the value of cot inverse x