nilai dari tg 135+sin120-cos150

tg (90+45) + sin (90+30) - cos (180-30)
= - cot 45 + cos 30 - (-cos30)
= -1 + 1/2 akar 3 + 1/2 akar 3
= -1 + akar 3

Bab Trigonometri
Matematika SMA Kelas X

tg 135° + sin 120° - cos 150°
= -1 + (1/2) √3 - (1/2) √3
= - 1