Hitunglah! 1. Sin 30°.Cos 60° + cos 30°.sin 60° 2.Cos 45°.Sin 90° - Sin 45°.Cos 90° Tolong bantu jawab yaa!!

Question

Matematika Diposting : 2017-04-19 Diupdate : 2021-08-17 Karinadinip1

Pertanyaan

Hitunglah!
1. Sin 30°.Cos 60° + cos 30°.sin 60°
2.Cos 45°.Sin 90° - Sin 45°.Cos 90°

Tolong bantu jawab yaa!!

Answer 1

1. 1/2.1/2 + 1/2 √3 1/2 √3
=> 1/4 + 3/4
=> 4/4=> 1

2. 1/2√2.1 - 1/2 √2.0
=>1/2 √2