Buktikan bahwa: 4 cos A cos (A + 4π/3) cos (A + 2π/3) = cos 3A
Matematika
Anonyme
Pertanyaan
Buktikan bahwa:
4 cos A cos (A + 4π/3) cos (A + 2π/3) = cos 3A
4 cos A cos (A + 4π/3) cos (A + 2π/3) = cos 3A
1 Jawaban
-
Pertanyaan Lainnya
