已知函数f(x)=1 +2sin(2x-3分之兀)当x∈[4分之兀,2分之兀]求f(x)的最大值

最小值
2025-06-21 08:16:53
推荐回答(1个)
回答1:

x∈[π/4,π/2]
→2x-π/3∈[π/6,2π/3].
∴x=π/2时,
f(x)|max=1+2sin(2π/3)=1+√3;
当x=π/4时,
f(x)|min=1+2sin(π/6)=2。