函数y=根号3/2*sin(x+派/2)+cos(

1个回答

y=√3/2*sin(x+π/2)+cos(π/6-x)=√3/2*sin(x+π/2)+√3/2cosx+1/2sinx
=√3/2cosx+√3/2cosx+1/2sinx=√3cosx+1/2sinx
A=√(3+1/4)=√13/2 ,
最大值y=√13/2