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(trigonometry) coversine; coversed sine
The calculation of the coversine is an important part of trigonometry.
Kyūjitai form of 余矢
He picked up the remaining arrows and drew his bow again.
a male given name
Katsuro is my best friend.
Katsuho is my best friend.
any child who is not the direct heir; any other person, someone else
He was raised as a spare child in his family.
Teiyoshi is my best friend.
Sadayoshi is my best friend.
Yoshio is my best friend.
Shoka is my best friend.
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