y=1/3sin（1x/3+π/4）的图像五点法画图取点怎么取x轴的点取-π/12,π/12,π/4,5π/12,7π/12sin（1x/3+π/4）对应的数分别是多少

Question

y=1/3sin（1x/3+π/4）的图像五点法画图取点怎么取
x轴的点取 -π/12,π/12,π/4,5π/12,7π/12 sin（1x/3+π/4）对应的数分别是多少

Answer 1

算哪.sin(-π/36+π/4)=sin（2π/9）=0.64278760968653932632264340990726 sin(π/36+π/4)=sin(5π/18)=0.76604444.sin(π/12+π/4)=sin(π/3）=0.8660254037.sin(5π/36+π/4)=sin(7π/18)=o.93969262.sin(7π/36+...