Mathematics
Senior High
この問題ってなぜtan=の形で答えるのですか?
cosじゃないんですか??
こと
(2) COS H
6
□ 310 次の直線とx軸の正の向きとのなす角を求めよ。
(1)y=-x
*(2) y = 1/13x
5
(3)
A clear -
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