Question

Please Help! When Θ = 5 pi over 6, what are the reference angle and the sign values for sine, cosine, and tangent?

Answer 1

these are the reference angles

Answer 2

do you know where is 5pi/6 at in unit circle ?

Answer 3

Thank you! Here are the multiple choice options by the way

Answer 4

And I think it's in the second quadrant, right?

Answer 5

yes that's right
i like degrees if you like it too then you can convert radians to degrees \[\huge\rm \frac{ 5\pi }{ 6 } \times \frac{ 180 }{ \pi }\]

Answer 6

and if you look at the unit circle 5pi/6 is here
and you need signs of cos sin and tan values
for that just remember CAST rule or it is like normal x y graph