若4sinα−2cosα5cosα+3sinα=6/11,则tanα=_.

问题描述:

4sinα−2cosα
5cosα+3sinα
=
6
11
,则tanα=______.

4sinα−2cosα
5cosα+3sinα
6
11
得,
4tanα−2
5tanα+3
6
11

即7tanα=20,解得tanα=
20
7

故答案为:
20
7