関連ワード:  cot inverse 3 is equal to    cot 1 3 is equal to    cot inverse 1 3 is equal to    cot inverse root 3 is equal to    cot inverse minus root 3 is equal to    tan inverse 3 cot inverse 3 is equal to    cot inverse x tan inverse 3 is equal to pi by 2    cot inverse 3 cosec inverse 5 is equal to    tangent inverse 3 cot inverse 3 is equal to    tan inverse 3 cot inverse 3 is equal to mcq