Question

exact values for secx=-2/sqrt3

Answer 1

\[secx = -\frac{2}{\sqrt{3}} \]
\[secx = \frac{1}{cosx} \]

Answer 2

I think that you're able to do it now..

Answer 3

\[\frac{1}{cosx} = -\frac{2}{\sqrt{3}} \]

Answer 4

no you'll have to explain a bit better than that, i can tell you the answer is 5pi/6 and -5pi/6 but im not sure how to get there

Answer 5

well cross multiply

Answer 6

\[\frac{1}{cosx} = \frac{-2}{\sqrt{3}} => \sqrt{3} = -2cosx\]
you should be able to do it now :)

Answer 7

thanks ill keep trying, would i b using the fourth quadrant to draw this

Answer 8

since cosx is a negative; so you will use the quadrants that i marks

Answer 9

that getting clearer for me, now if you could just name the angles with the answers i gave before i might be able to complete the puzzle

Answer 10

i think the angle has to be in one quadrant or the other

Answer 11

oops i gave you the wrong answer a moment ago, the correct answer is pi/3 and -2pi/3, maybe that will help

Answer 12

hmm; i dont know how to explain sorry
\[ cosx = -\frac{\sqrt{3}}{2} => x = \frac{\pi}{6} + \pi => \frac{7\pi}{6} \]

Answer 13

\[ x = \pi
- \frac{\pi}{6}
= \frac{5\pi}{6}\]