Mathematics
Senior High
なぜ答えがマイナスになるのですか?
90'"ミの<180* のとき
, CosSの9ミミ0 であるから
@eSみ 三 時
SG 還電ISIm/
KSJalGV/。 So より
DI 4
tan9 = 言て(しー)
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