Question

Assume that the terminal side of an angle of t radius passes through the given point (1/sqrt 10 , -3/sqrt10 ) on the unit circle, how do you find sin t, cos t, tan t?

Answer 1

Find sin t, cos t, and tan t

Explanation:

Call x the arc that the terminal is M `(1/sqrt10, -3/sqrt10)`
We have:
`cos t = 1/sqrt10 = 0.316` --> arc `t = +- 71.57`.
`sin t = -3/sqrt10 = -0.948` --> `t = -71.57`
`tan t = - (0.948)/(0.316) = 3`