Question

qUAL É A SEC (5PI/3)?

Answer 1

$\sec( \frac{5\pi}{2} ) = ({ \frac{1}{2} })^{ - 1} = 2$

Answer 2

5.π/3 = 5.60 = 300°

Cos 300= Cos 360-300=cos60= 1/2

sec300= sec60 =1/cos60 = 2 ✓