Using reference angles, how do you find trig functions of cos115?

Question

↳Redirected from "How to find p ?"

4757 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-05-07T15:48:21

On the trig unit circle:

cos (115) = cos (90 + 25) = -sin 25 = -0.42 (Calculator)

sin (115) = sin (90 + 25 ) = cos 25 = 0.90 (Calculator)

#tan (115) = -0.90/0.42 = -2.14#

#cot (115) = 1/-2.14 = - 0.47#

#sec (115) = 1/0.42 = -2.38#

#csc (115) = 1/0.90 = 1.11.#