Question

There are ten options, but I cannot send all ten at once. Please draw out the correct graph!

Answer 1

To answer this question we need to remember that:

`\sec \theta=(1)/(\cos \theta)`

then:

`\begin{gathered} \sec \theta=-(13)/(5) \\ (1)/(\cos \theta)=-(13)/(5) \\ \cos \theta=-(5)/(13) \\ \theta=\cos ^(-1)(-(5)/(13)) \\ \theta=112.62 \end{gathered}`

There's only one angle that gives this result that it is real. Therefore the answer is 112.62