Question

what is the value of sec 13π/3​

Answer 1

Answer:

pie =180

13×180/3

2340/3

780 degree

Answer 2

$sec \frac{13\pi}{4} = sec(4\pi - \frac{13\pi}{4} ) \\ sec \frac{13\pi}{4} = sec \frac{3\pi}{4} \\ sec \frac{13\pi}{4} = - \sqrt{2}$