值域,定义域1、已知F(X)定义域为R,且F(X+Y)=F(X)×F(Y),若F(2)=a,求F(16)2、F(x)=根号下X²-2X+3,求F(X)值域3、求Y=X²-4X,X∈[1,5]上最大(小)值
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![值域,定义域1、已知F(X)定义域为R,且F(X+Y)=F(X)×F(Y),若F(2)=a,求F(16)2、F(x)=根号下X²-2X+3,求F(X)值域3、求Y=X²-4X,X∈[1,5]上最大(小)值](/uploads/image/z/2688239-47-9.jpg?t=%E5%80%BC%E5%9F%9F%2C%E5%AE%9A%E4%B9%89%E5%9F%9F1%E3%80%81%E5%B7%B2%E7%9F%A5F%28X%29%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAR%2C%E4%B8%94F%EF%BC%88X%2BY%EF%BC%89%3DF%EF%BC%88X%EF%BC%89%C3%97F%EF%BC%88Y%EF%BC%89%2C%E8%8B%A5F%EF%BC%882%EF%BC%89%3Da%2C%E6%B1%82F%EF%BC%8816%EF%BC%892%E3%80%81F%EF%BC%88x%EF%BC%89%3D%E6%A0%B9%E5%8F%B7%E4%B8%8BX%26%23178%3B-2X%2B3%2C%E6%B1%82F%EF%BC%88X%EF%BC%89%E5%80%BC%E5%9F%9F3%E3%80%81%E6%B1%82Y%3DX%26%23178%3B-4X%2CX%E2%88%88%5B1%2C5%5D%E4%B8%8A%E6%9C%80%E5%A4%A7%EF%BC%88%E5%B0%8F%EF%BC%89%E5%80%BC)
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