How do you find the exact values of other 5 trigonometric functions given sin u = -5/13 and cos u>0?

Question

How do you find the exact values of other 5 trigonometric functions given sin u = -5/13 and cos u>0?

1 Answer

Impact of this question

2713 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-05-28T05:01:04

Find values of trig functions

Explanation:

Apply the trig identity: #cos^2 x = 1 - sin^2 x#
#cos^2 u = 1 - sin^2 u = 1 - 25/169 = 144/169#
#cos u = 12/13# (cos u positive)
#tan u = sin/(cos) = -5/12#
#cot u = 1/(tan) = -12/5#
#sec u = 1/(cos) = 13/12#
#csc u = 1/(sin) = - 13/5#

Science

Math

Humanities

... and beyond

How do you find the exact values of other 5 trigonometric functions given sin u = -5/13 and cos u>0?

1 Answer

Explanation:

Related questions

Impact of this question