I learned how to calculate the hacoversine in trigonometry.

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

He is good at solving trigonometry problems.

He set the arrow on the bow and aimed at the target.

I like to study new languages.

He lived in Japan for a year and a half.

He is an expert in law.

There are times when we perform calculations with the haversine in trigonometry.

I will solve this problem.

I am here to solve this problem.