SOLUTION: compute the value of cos(t) if its known that sin^2(t) = 1/5 and that the terminal pots of t lies in quadrant 2

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Question 1167597: compute the value of cos(t) if its known that sin^2(t) = 1/5 and that the terminal pots of t lies in quadrant 2
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!

Pythagorean Identity:



So if then

So



But

So




John

My calculator said it, I believe it, that settles it


I > Ø