已知f(x)=sin(wx+π/3)(w>0)是最小正区间为4的周期函数,求f(2010)的值2.已知f(x)的定义域R,最小正周期为3π/2,且fx=cosx(-π/2≤x<0),fx=sinx,0≤x<π,求f(-15π/4)的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 04:46:39
已知f(x)=sin(wx+π/3)(w>0)是最小正区间为4的周期函数,求f(2010)的值2.已知f(x)的定义域R,最小正周期为3π/2,且fx=cosx(-π/2≤x<0),fx=sinx,0

已知f(x)=sin(wx+π/3)(w>0)是最小正区间为4的周期函数,求f(2010)的值2.已知f(x)的定义域R,最小正周期为3π/2,且fx=cosx(-π/2≤x<0),fx=sinx,0≤x<π,求f(-15π/4)的值
已知f(x)=sin(wx+π/3)(w>0)是最小正区间为4的周期函数,求f(2010)的值
2.已知f(x)的定义域R,最小正周期为3π/2,且fx=cosx(-π/2≤x<0),fx=sinx,0≤x<π,求f(-15π/4)的值

已知f(x)=sin(wx+π/3)(w>0)是最小正区间为4的周期函数,求f(2010)的值2.已知f(x)的定义域R,最小正周期为3π/2,且fx=cosx(-π/2≤x<0),fx=sinx,0≤x<π,求f(-15π/4)的值
1.4w=2π,w=π/2
f(2010)=f(2)=sin(π+π/3)=-gen3/2
2.f(-15π/4)=f(-15π/4+9π/2)=f(3π/4)
=sin3π/4=gen2/2

1.4w=2π,w=π/2
f(2010)=f(2)=sin(π+π/3)=-根号3/2
2.f(-15π/4)=f(-15π/4+9π/2)=f(3π/4)
=sin3π/4=根号2/2