Show that
5√3 + 1 sin = 12212
To do this, you may use that
√3 - 1 sin 12) = 2√2 √3 + 1 COS 12) = 212
and the identity
sin(a + b) = sin(a) cos(b) + cos(a) sin(b).
Let ABC be a triangle where ∠ZA = 5π/12 radians, ∠ZB = π/6 radians, and the length of side AB is 2 cm. Find the length of side AC.