日語
詞源
借自
英語
。
名詞
• (
)
(
三角學
)
反餘弦
參見
(
)
(
sain
)
(
kosain
)
(
tanjento
)
(
kotanjento
)
(
sekanto
)
(
kosekanto
)
(
ākusain
)
(
ākutanjento
)
(
ākukotanjento
)
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