So I have a question that is:

Given that cos theta = 24/25 and theta is in Quadrant I, determine sin 2theta, cos 2theta and tan 2theta. Which quadrant is 2theta in?

I already solved the sin, cos and tan portion of the problem

sin 2theta = 336/625

cos 2theta = 527/625

tan 2theta = 336/527

but the issue I have is I have no idea how to determine which quadrant 2theta is in.

Any help would be appreciated! Thanks in advance!