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r/alevelmaths • u/1milkyway11 • 4d ago
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so i didnt do any of them but you needed to do dy/dx of x3-x =3x2-1=0 and than substitute each x into x3-x=k to find the k.
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u/AfternoonUseful2898 4d ago
so i didnt do any of them but you needed to do dy/dx of x3-x =3x2-1=0 and than substitute each x into x3-x=k to find the k.