Question

Find sin θ, if cos θ = 2/5 and tan θ < 0.

If you could explain the steps, please, that'd be awesome!

Answer 1

Welcome to OpenStudy! :D

You might not have realized, but when I gave you those tutorials on how to use OpenStudy, I brought you to OpenStudy Feedback. To go back to Math and ask your question there:
Click "Find More Subjects" which is located at the top.
And find the subject 'Mathematics'.

Also you can view this gif (short video) to see how to do it. :)
http://goo.gl/kBfwgp

Answer 2

Also make sure to take time to read the \(\CoC\)
\(\def\CoC{\href{http:///openstudy.com/code-of-conduct}{\sf Code~of~Conduct}}\)
Happy OpenStudying! :D

Answer 3

Here is the link.
http://openstudy.com/code-of-conduct

Answer 4

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@CobaltThunder267