判断函数f(x)=ln(x+√x²+1)的奇偶性.注:是√(x²+1)
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判断函数f(x)=ln(x+√x²+1)的奇偶性.注:是√(x²+1)
判断函数f(x)=ln(x+√x²+1)的奇偶性.注:是√(x²+1)
判断函数f(x)=ln(x+√x²+1)的奇偶性.注:是√(x²+1)
是奇函数,首先判断定义域是R,f(-x)=ln(-x+√x²+1)=ln(1/(x+√x²+1))=-ln(x+√x²+1)=-f(x)