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本文给出一道双曲线试题的错解剖析,供读者参考.题1在直角坐标系中,过双曲线x~2-y~2/9=1的左焦点F作圆x~2+y~2=1的一条切线(切点为
In this paper, a hyperbolic test error analysis, for readers reference .Table 1 In the Cartesian coordinate system, the hyperbola hyperbolic x ~ 2-y ~ 2/9 = 1 left focus F for the circle x ~ 2 + y ~ A tangent of 2 = 1 (tangent point is