设f(x)在[a, b](a<b)上连续且单调减少,则f(x)在[a, b]上的最大值是( )
f(a)
f(b)
因为f(x)在[a, b](a<b)上连续且单调减少,所以f(x)在[a, b]上的最大值是f(a)