1.(4sinx-2cosx)除以cosx/(5cosx+3sinx)除以cosx=6/11
(4tanx-2)/(5+3tanx)=6/11
令tanx=p
则4p-2/5+3p=6/11
11*(4p-2)=6*(5+3p)
26p=52
p=2
1.(4sinx-2cosx)除以cosx/(5cosx+3sinx)除以cosx=6/11
(4tanx-2)/(5+3tanx)=6/11
令tanx=p
则4p-2/5+3p=6/11
11*(4p-2)=6*(5+3p)
26p=52
p=2