Answer:
ec
(
x
)
=
√
13
3
Use the definition of secant to find the known sides of the unit circle right triangle. The quadrant determines the sign on each of the values.
sec
(
x
)
=
hypotenuse
adjacent
Find the opposite side of the unit circle triangle. Since the adjacent side and hypotenuse are known, use the Pythagorean theorem to find the remaining side.
Opposite
=
√
hypotenuse
2
−
adjacent
2
Step-by-step explanation:
