Mr. Fuyo is my best friend.

I have been to Fuyo.

The calculation of the coversine is an important part of trigonometry.

In order to calculate the value of the cotangent, you need to divide the length of the adjacent side of a right triangle by the length of the opposite side.

In this right triangle, since one angle is 30 degrees, its complementary angle is 60 degrees.

Yosawa is my best friend.

His words contained an implied meaning.

Please tell me the meaning of 'yokire'.

In trigonometry, it is important to calculate the value of the cosecant.

Shooto is a mixed martial arts originated from Japan.