共50条信息
已知\(x={{x}_{1}},x={{x}_{2}}\)是函数\(f(x)=\dfrac{1}{3}a{{x}^{3}}-\dfrac{1}{2}a{{x}^{2}}-x\)的两个极值点,且\(A\left({x}_{1}, \dfrac{1}{{x}_{1}}\right) B({{x}_{2}},\dfrac{1}{{{x}_{2}}})\),则直线\(AB\)与椭圆\(\dfrac{{{x}^{2}}}{2}+{{y}^{2}}=1\)的位置关系为
已知\(⊙C:(x+1)^{2}+(y-1)^{2}=1\)与\(x\)轴切于\(A\)点,与\(y\)轴切于\(B\)点,设劣弧\(\overset\frown{AB}\)的中点为\(M\),则过点\(M\)的圆\(C\)的切线方程是\((\) \()\)
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