化简3/2cosx+√3/2sinx
问题描述：
化简3/2cosx+√3/2sinx
答
√3／2sin(x+π／6）
答
3/2cosx+√3/2sinx
=√3(√3/2cosx+1/2sinx)
=√3(cosπ/6cosx+sinπ/6sinx)
=√3cos(π/6-x)
答
1).
3/2cosx+√3/2sinx
=√3(√3/2cosx+1/2sinx)
=√3sin(x+π/3)
(其中π/3即为60°)
2）.也可为
3/2cosx+√3/2sinx
=√3(√3/2cosx+1/2sinx)
=√3(cosπ/6cosx+sinπ/6sinx)
=√3cos(π/6-x)