Mathematics
Senior High

次の直線とx軸の正の向きとなす角θを求めよ。
x+ルート3y=0

直線の傾きと正接

Answers

直線の傾きはtanと等しいです。
x+√3y
y=(-1/√3)x

tanθ=(-1/√3)
θ=150°

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