Question

sec theta = -5 (Give answers to the nearest tenth of a degree)

Answer 1

\[\sec \theta=\frac{1}{\cos \theta}\]

Answer 2

so\[\cos \theta= -\frac{1}{5}\]

Answer 3

\[\cos^{-1}(-\frac{1}{5})=\theta\]

Answer 4

Thank you very much! I was plugging in \[1/\cos^{-1}(-5) \]which didn't fit the domain.

Answer 5

:D:D