a. Sin x = -½
Sin x = Sin 210 atau 330
x = 210, 330
b. Sin x = -½√3
Sin x = Sin 300 atau 240
x = 300, 240
c 3tan x = -√3
tan x = -√3/3
tan x = tan 330, 150
x = 330, 150
d. Cos(x-10) = -1
Cos(x-10) = Cos 270,180
x-10 = 270,180
x = 280,190
e.2sinx = 2
sin x = 1
sin x = sin 90,180
x = 90,180
f. -4cosx = 2√3
cosx = -½√3
cos x = cos 120,240
x = 120,240
Jawab:
a. sin 210= sin (180 + 30)
b. sin240= sin(180+60)
c. tan 150
d.
Penjelasan dengan langkah-langkah:
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a. Sin x = -½
Sin x = Sin 210 atau 330
x = 210, 330
b. Sin x = -½√3
Sin x = Sin 300 atau 240
x = 300, 240
c 3tan x = -√3
tan x = -√3/3
tan x = tan 330, 150
x = 330, 150
d. Cos(x-10) = -1
Cos(x-10) = Cos 270,180
x-10 = 270,180
x = 280,190
e.2sinx = 2
sin x = 1
sin x = sin 90,180
x = 90,180
f. -4cosx = 2√3
cosx = -½√3
cos x = cos 120,240
x = 120,240
Jawab:
a. sin 210= sin (180 + 30)
b. sin240= sin(180+60)
c. tan 150
d.
Penjelasan dengan langkah-langkah: