Hitunglah a. sin 30° cos 60° + cos 45°
sin 30° = 1/2
cos 60° = 1/2
cos 45° = √3/2
sin30°cos60° + cos 45°
= 1/2 . 1/2 + √3/2
= 1/4 + √3/2
= (1 + 2√3)4
semoga membantu
maaf kalo salah
Hitunglah a. sin 30° cos 60° + cos 45°
sin 30° = 1/2
cos 60° = 1/2
cos 45° = √3/2
sin30°cos60° + cos 45°
= 1/2 . 1/2 + √3/2
= 1/4 + √3/2
= (1 + 2√3)4
semoga membantu
maaf kalo salah