Question

Find the exact value without using a calculator:

tan -5pi/6

Answer 1

first convert the radians to degrees by multiplying -5pi/6 by 180/pi

Answer 2

Okay...-150. Where do I go from here?

Answer 3

how are you supposed to find EXACT value of tan without a calculator....

Answer 4

That's what I'm wondering ha @chingmachine

Answer 5

so -150 is the degrees, meaning it is 150 degrees going the opposite direction

Answer 6

Here's the problem

Answer 7

Then you use your knowlege of right triangle to find out the rest