Given sin t= 1/5, sec t<0, find cos (t) and cot (t)
If sec < 0 then cos < 0 (sec is 1/cos)
sin^2 + cos^2 = 1
cos^2 = 1-sin^2
= 1 - 1/25 =24/25
cos t = - sqrt 24 / 5 cot = cos / sin I think you can do that one ...