ada yang bisa bantuuuuuuu?!

2tan² x - 5tan x + 2 = 0
(2tan x - 1)(tan x - 2) = 0
2tan x = 1 --> tan x = 1/2
r = √(1² + 2²) = √5

➡ sin x = 1/r = 1/√5 = 1/5 √5

tan x = 2
r = √(2² + 1) = √5

sin x = 2/r = 2/5 √5

Jwb : A