已知f(x)=e^x-e^﹣x,g(x)=e^x+e^﹣x(e=2.718…).设f(x)·f(y)=4,g(x)·g(y)=8.求g(x+y)/g(x+y)的值.有急用,是g(x+y)/g(x-y)
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![已知f(x)=e^x-e^﹣x,g(x)=e^x+e^﹣x(e=2.718…).设f(x)·f(y)=4,g(x)·g(y)=8.求g(x+y)/g(x+y)的值.有急用,是g(x+y)/g(x-y)](/uploads/image/z/9758139-51-9.jpg?t=%E5%B7%B2%E7%9F%A5f%28x%29%3De%5Ex%EF%BC%8De%5E%EF%B9%A3x%2Cg%28x%29%3De%5Ex%2Be%5E%EF%B9%A3x%28e%3D2.718%E2%80%A6%29.%E8%AE%BEf%28x%29%C2%B7f%28y%29%3D4%2Cg%28x%29%C2%B7g%28y%29%3D8.%E6%B1%82g%28x%2By%29%2Fg%28x%2By%29%E7%9A%84%E5%80%BC.%E6%9C%89%E6%80%A5%E7%94%A8%2C%E6%98%AFg%28x%2By%29%2Fg%28x-y%29)
已知f(x)=e^x-e^﹣x,g(x)=e^x+e^﹣x(e=2.718…).设f(x)·f(y)=4,g(x)·g(y)=8.求g(x+y)/g(x+y)的值.有急用,是g(x+y)/g(x-y)
已知f(x)=e^x-e^﹣x,g(x)=e^x+e^﹣x(e=2.718…).设f(x)·f(y)=4,g(x)·g(y)=8.求g(x+y)/g(x+y)的值.
有急用,
是g(x+y)/g(x-y)
已知f(x)=e^x-e^﹣x,g(x)=e^x+e^﹣x(e=2.718…).设f(x)·f(y)=4,g(x)·g(y)=8.求g(x+y)/g(x+y)的值.有急用,是g(x+y)/g(x-y)
体好像最后有毛病
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