SOLUTION: Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a, cos a, tan a
Algebra ->
Trigonometry-basics
-> SOLUTION: Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a, cos a, tan a
Log On
Question 455173: Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a, cos a, tan a Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5).
--
y = -5 ; x = -12 means angle "a" is in the 3rd quadrant.
----
r = sqrt[5^2+12^2] = sqrt[169] = 13
---
=====================
Find the exact values for the trig functions,
sin a = y/r = -5/13
cos a = x/r = -12/13
tan a = y/x = 5/12
=======================
Cheers,
Stan H.
(