函数=(1+根号3tanα)cosα,(0
问题描述:
函数=(1+根号3tanα)cosα,(0
答
函数
y=cosa+√3tanacosa
=cosa+√3sina
=2(1/2cosa+√3/2sina)
=2sin(a+π/6)
当02(1/2cosa+√3/2sina)=2sin(a+π/6)为什么∵sin(a+π/6)=sinacosπ/6+cosasinπ/6这是公式的