" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Mapel : Matematika PeminatanKelas : XI SMA
Bab : Persamaan Trigonometri
Pembahasan :
4Sec²x - 9Tan x - 1 = 0
4(1 + Tan²x) - 9Tan x - 1 = 0
4Tan²x - 9Tan x + 3 = 0
Gunakan Rumus ABC
Tan x = (9 - √33)/8
Tan x = 0,4....
Tan x = 0,5
Tan x = 1/2
Jawaban : E