Mathematics
Senior High
Resolved
丸をつけたところがどうしてそうなるかわかりません。教えて下さい!
cos15*=ソ1ーsin215*
-.人yeき Le 四580D83-Z- 5+yケ
4 4 4
本SIMHB9ESSGE3S2良(SBK20SSIBS22 8一473 。 な
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