Tolong bantu jawab no 16,17, dan 18!
Jawaban Terkonfirmasi
16. cos @ = sa/mi = 2√6/4√2 = 1/2 √3
@ = arc cos 1/2√3 = 30°
17. 1/2 – (-1/2) + 1 = 2
18.sec 330°. tan 120°.sin 315° = 2 . (-√3) . (-1/2√2) = √6
Tolong bantu jawab no 16,17, dan 18!
16. cos @ = sa/mi = 2√6/4√2 = 1/2 √3
@ = arc cos 1/2√3 = 30°
17. 1/2 – (-1/2) + 1 = 2
18.sec 330°. tan 120°.sin 315° = 2 . (-√3) . (-1/2√2) = √6