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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