cos 105° + Cos 15° =
Matematika
Naaandhyena
Pertanyaan
cos 105° + Cos 15° =
1 Jawaban
-
1. Jawaban azzahrafara33p2yi3t
cos (105°) + Cos (15°)
2 cos (60°)cos (45°)
2 × 1/2 × √2/2
= √2/2
≈ 0,707107