Mathematics
Senior High
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解説お願いします
11 関数 y=3x2-2xのグラフに, 点A(0, -3) から引いた接線の方程式をすべて求めよ。
y=mx-3とおく
3x²-2x=mx-3
2
接する D=0
39.2g-mx+3=0
3x²- (2+ m) x + 3 = 0
=0
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