Question

sec theta= -square 2

Answer 1

\[sec~ \theta = -\sqrt{2}\]
Now we really don't know what it represents. But what we DO know is what cos theta helps us find, ie. we know the trig. values of the cosine function:

\[\frac{1}{cos ~\theta} = -\sqrt{2}\]

\[cos ~\theta = -\frac{1}{\sqrt{2}}\]

Now cosine is negative in the 2nd and the 3rd quadrants only. Can you find '\(\theta\)' now? :D

Answer 2

I think I can. thank you:)

Answer 3

:)

Answer 4

I think theta is 3pie/4 and 5pie/4?? Thank you for your help sir!

Answer 5

cos^2x/sin^2x +cosx secx