nilai dari 2 sin 150° + 6 cos 300°=

sin 150 = sin 30 = 1/2
cos 300 = cos 60 = 1/2
2.1/2 + 6.1/2 = 4

2 sin 150 + 6 cos 300

sin 150
= sin (180 - 30)
= sin 30
= 1/2

cos 300
= cos (360 - 60)
= cos 60
= 1/2

2×1/2 +6×1/2
1 + 3
4