设f(x)=(1-x)/ax+ax (a>0) (1)判断函数f(X)在(0,+∞)的单调性 (2)设g(a)为f(x)在区间(0,1]
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设f(x)=(1-x)/ax+ax(a>0)(1)判断函数f(X)在(0,+∞)的单调性(2)设g(a)为f(x)在区间(0,1]设f(x)=(1-x)/ax+ax(a>0)(1)判断函数f(X)在(
设f(x)=(1-x)/ax+ax (a>0) (1)判断函数f(X)在(0,+∞)的单调性 (2)设g(a)为f(x)在区间(0,1]
设f(x)=(1-x)/ax+ax (a>0) (1)判断函数f(X)在(0,+∞)的单调性 (2)设g(a)为f(x)在区间(0,1]
设f(x)=(1-x)/ax+ax (a>0) (1)判断函数f(X)在(0,+∞)的单调性 (2)设g(a)为f(x)在区间(0,1]
f'(x)=a-1/ax^2
令f'(x)>0
得x<-1/a或x>1/a
所以函数f(x)在(0,1/a)单调递减,在(1/a,+∞)单调递增
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