Matematika

Pertanyaan

1.Nilai COS 540° ,,
2. Nilai Tan 135° + cos 210°
Tolong beserta caranya

2 Jawaban

  • Cos 540°
    = cos 180°
    = -1

    Tan 135° + Cos 210°
    = -1 - 1/2√3
  • Bab Trigonometri
    Matematika SMA Kelas X

    1] cos 540° = cos (360° + 180°
    cos 540° = cos 180°
    cos 540° = -1

    2] tan 135° + cos 210°
    = tan (180° - 45°) + cos (180° + 30°)
    = - tan 45° + (- cos 30°)
    = -1 - 1/2 √3
    = (-2 - √3)/2

Pertanyaan Lainnya