9514 1404 393
Answer:
√3
Step-by-step explanation:
Remove all multiples of 2π from the angle. This gives you a coterminal angle in the range 0–2π.
tan(13π/3) = tan(4π +π/3) = tan(π/3)
You have memorized this value, so you know tan(π/3) = √3.
tan(13π3) = √3
