y=46sinx-46x+p/4. найти наименьшее значение функции на отрезке [-p/2;p/2}

y=46sinx-46x+π/4y`=46cosx-4646cosx-46=046cosx=46cosx=1x=2πnn=0  x=0∈[-π/2;π/2]y(-π/2)=46sin(-π/2)-46*(-π/2)+π/4=-46+23π+π/4≈27 наибy(0)=46sin0-46*0+π/4=π/4≈0,8y(π/2)=46sinπ/2-46*π/2+π/4=46-23π+π/4≈-25,4 наим