关于有界函数下列函数中在所给的区间上是有界函数的为()A、f(x)=1/(x+1)[0,1]B、f(x)=1/(x+1)(-1,0)C、f(x)=e^x(-无穷大,+无穷大)D、f(x)=lnx(0,+无穷大)请说明理由,
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![关于有界函数下列函数中在所给的区间上是有界函数的为()A、f(x)=1/(x+1)[0,1]B、f(x)=1/(x+1)(-1,0)C、f(x)=e^x(-无穷大,+无穷大)D、f(x)=lnx(0,+无穷大)请说明理由,](/uploads/image/z/11526830-62-0.jpg?t=%E5%85%B3%E4%BA%8E%E6%9C%89%E7%95%8C%E5%87%BD%E6%95%B0%E4%B8%8B%E5%88%97%E5%87%BD%E6%95%B0%E4%B8%AD%E5%9C%A8%E6%89%80%E7%BB%99%E7%9A%84%E5%8C%BA%E9%97%B4%E4%B8%8A%E6%98%AF%E6%9C%89%E7%95%8C%E5%87%BD%E6%95%B0%E7%9A%84%E4%B8%BA%EF%BC%88%EF%BC%89A%E3%80%81f%28x%29%3D1%2F%28x%2B1%29%5B0%2C1%5DB%E3%80%81f%28x%29%3D1%2F%28x%2B1%29%28-1%2C0%29C%E3%80%81f%28x%29%3De%5Ex%28-%E6%97%A0%E7%A9%B7%E5%A4%A7%2C%2B%E6%97%A0%E7%A9%B7%E5%A4%A7%EF%BC%89D%E3%80%81f%28x%29%3Dlnx%280%2C%2B%E6%97%A0%E7%A9%B7%E5%A4%A7%EF%BC%89%E8%AF%B7%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1%2C)
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