Question

When I try solving tan 5pi/6 I keep getting 1/-sqrt3

Answer 1

that's correct... as this is a 2nd quadrant angle where tan is negative

to check find

\[\tan (\frac{\pi}{6})\]

from the exact value triangle




and then \[\tan(\frac{5\pi}{6}) = - \tan(\frac{\pi}{6})\]

hope it helps

Answer 2

but it isn't one of my answer choices. the right answer is -sqrt3/3 and i don't understand how that is @campbell_st