f(tanx)=sin(π/6-x)求:f(cotx)
问题描述：
f(tanx)=sin(π/6-x)求:f(cotx)
f(tanx)=sin(π/6-x) 求:f(cotx)
答
f(tanx)=sin(π/6-x)
f(cotx)=f[tan(π/2-x)]
=sin[π/6-(π/2-x)]
=sin(x-π/3)