求函数f(x)=log1/2(1/(1+x)+1/(1+x))的定义域,值域和递增区间 1/2为底数,1/(1+x)+1/(1+x)为真数不好意思打错了是 log1/2(1/(1-x)+1/(1+x))
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![求函数f(x)=log1/2(1/(1+x)+1/(1+x))的定义域,值域和递增区间 1/2为底数,1/(1+x)+1/(1+x)为真数不好意思打错了是 log1/2(1/(1-x)+1/(1+x))](/uploads/image/z/2109912-24-2.jpg?t=%E6%B1%82%E5%87%BD%E6%95%B0f%28x%29%3Dlog1%2F2%281%2F%281%2Bx%29%2B1%2F%281%2Bx%29%29%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%2C%E5%80%BC%E5%9F%9F%E5%92%8C%E9%80%92%E5%A2%9E%E5%8C%BA%E9%97%B4+1%2F2%E4%B8%BA%E5%BA%95%E6%95%B0%2C1%2F%281%2Bx%29%2B1%2F%281%2Bx%29%E4%B8%BA%E7%9C%9F%E6%95%B0%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D%E6%89%93%E9%94%99%E4%BA%86%E6%98%AF+log1%2F2%281%2F%281-x%29%2B1%2F%281%2Bx%29%29)
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求函数f(x)=log1/2(1/(1+x)+1/(1+x))的定义域,值域和递增区间 1/2为底数,1/(1+x)+1/(1+x)为真数不好意思打错了是 log1/2(1/(1-x)+1/(1+x))
求函数f(x)=log1/2(1/(1+x)+1/(1+x))的定义域,值域和递增区间
1/2为底数,1/(1+x)+1/(1+x)为真数
不好意思打错了是 log1/2(1/(1-x)+1/(1+x))
求函数f(x)=log1/2(1/(1+x)+1/(1+x))的定义域,值域和递增区间 1/2为底数,1/(1+x)+1/(1+x)为真数不好意思打错了是 log1/2(1/(1-x)+1/(1+x))
真数2/(1-x^2)大于0,可得到定义域(-1,1)
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