Question

under root 13 - 18 tan X equal to 6tan x minus 3​

Answer 1

Step-by-step explanation:

13-18tanx =(6tanx-3)^2

13 - 18tanx = 36(tanx)^2 + 9 - 36tanx

36 (tanx)^2 - 18tanx - 4 = 0

13 (tanx)^2 - 9tanx - 2 = 0

tanx = 9 + under root 185

-----------------------------

26

or

tanx = 9 - under root 185

-----------------------------

26

Hope u got it