Cara Menghitung Trigonometry
learn.whatIsHeading
Trigonometry studies relationships between angles and sides of triangles. Beyond right triangles, the law of sines and law of cosines handle any triangle. Trigonometric identities simplify complex expressions.
Panduan Langkah demi Langkah
- 1Law of Sines: a/sin(A) = b/sin(B) = c/sin(C)
- 2Law of Cosines: c² = a² + b² − 2ab×cos(C)
- 3Pythagorean identity: sin²θ + cos²θ = 1
- 4Sum formulas: sin(A+B) = sinA×cosB + cosA×sinB
Contoh Terpecahkan
Masukan
sin(30°)
Hasil
= 0.5 · cos(60°) = 0.5 · tan(45°) = 1