共50条信息
已知曲线\(C_{1}\):\(y^{2}=tx(y > 0,t > 0)\)在点\(M\left( \left. \dfrac{4}{t},2 \right. \right)\)处的切线与曲线\(C_{2}\):\(y=e^{x+1}-1\)也相切,则\(t\ln \dfrac{4e^{2}}{t}\)的值为\((\) \()\)
直线\(l\)的斜率为\(2\),\(l_{1}/\!/l_{2}\),直线\(l_{2}\)过点\((-1,1)\)且与\(y\)轴交于点\(P\),则\(P\)点坐标为\((\) \()\)
记函数\(y={e}^{x} \)在\(x=n\left(n=1,2,3……\right) \)处的切线为\({l}_{n} .\) 若切线\({l}_{n} \)与\({l}_{n+1} \)的交点坐标为\(\left({A}_{n},{B}_{n}\right) \),那么
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