【简答题】函数y=x/sinx 的间断点为__________间断点
【简答题】You feel generally depressed and unable to concentrate. Your pattern of daily activity may change:you find yourself awake and active in the middle of the night;you sleep late into the day. You stay i...
【简答题】已知幂函数y=f(x)经过点 . (1)试求函数解析式; (2)判断函数的奇偶性并写出函数的单调区间.
【单选题】设函数y=|x 3 -1|,则x=1是函数的( ).
【单选题】x=-3为函数y=1/(x+3)的什么类型的间断点?