Cos125.cos35 +sin125.sin35 =
Matematika
Boydiva
Pertanyaan
Cos125.cos35 +sin125.sin35 =
1 Jawaban
-
1. Jawaban Cadilac
CosACosB + SinASinB = Cos(A-B)
Cos(A-B) = Cos(125-35) = Cos 90 = 0