Question

2√2 cos x - sin x = 0 berapa 4tan x -√2

Answer 1

Verified answer

Bab Trigonometri
Matematika SMA Kelas X

2 √2 cos x - sin x = 0
2 √2 cos x = sin x
sin x = 2 √2 cos x  
sin x / cos x = 2 √2
tan x = 2 √2

4 tan x - √2 = 4 . 2 √2 - √2
                   = 8 √2 - √2
                   = 7 √2