Question

4) Reduza ao 1° quadrante o ângulo de 4π/3. A) π/3. B) 2π/3. C) 3π/4. D) π/2.

Answer 1

$\frac{4\pi}{3} - \pi = \frac{4\pi - 3\pi}{3}=\frac{\pi}{3}$

$\huge\boxed{\boxed{\mathsf{\maltese~~Alternativa~a}}}$