Question Number 168436 by mathlove last updated on 10/Apr/22
![y=(sin x+cos x)^2 −1 is any point minmum praice the [((3π)/2),((7π)/2)]](https://www.tinkutara.com/question/Q168436.png)
$${y}=\left(\mathrm{sin}\:{x}+\mathrm{cos}\:{x}\right)^{\mathrm{2}} −\mathrm{1} \\ $$$${is}\:{any}\:{point}\:{minmum}\:{praice} \\ $$$${the}\:\left[\frac{\mathrm{3}\pi}{\mathrm{2}},\frac{\mathrm{7}\pi}{\mathrm{2}}\right] \\ $$