Question

Help please (:

Answer 1

take out the calculator

Answer 2

ok

Answer 3

so cos -1 91 divided by 1.3837) = 43.72214968

Answer 4

the nine is supposed to be a paranthesis

Answer 5

what would be my next step?

Answer 6

\(\sec \theta = -1.3837\)

\(\sec \theta = \dfrac{1}{\cos \theta} ~~\iff ~~\cos \theta = \dfrac{1}{\sec \theta}\)

\(\cos \theta = \dfrac{1}{-1.3837} = -0.7227\)

\(\theta = \cos ^{-1} (-0.7227) = 136.2779^\circ\)