Question

Help?
Given cos(theta)=1/-5 and tan(theta)>0, find sin(theta)

Answer 1

find the length of the opposite side by pythagoras
then take the ratio you need

Answer 2

by a^2+b^2=c^2?

Answer 3

yes

Answer 4

or by
\[\sqrt{5^2-1^2}\] same thing

Answer 5

4/5?

Answer 6

\[\frac{ 2\sqrt{6} }{ 5 }\]
?