👤

Answer :

Sqdancefango

9514 1404 393

Answer:

  1. (a) -√5

  2. 3/5

Step-by-step explanation:

1. sec²(θ) = tan²(θ) +1

  sec²(θ) = (-2)² + 1 = 5

  sec(θ) = ±√5

In the second quadrant, secant is negative, so ...

  sec(θ) = -√5

__

2. cos(θ) = 1/sec(θ)

  cos(θ) = 1/(5/3)

  cos(θ) = 3/5

Go Teaching: Other Questions