Need major help with Trig Identities!
So I'm doing trig identities in my advanced functions course and for some reason my brain just will not even take hold of a basic grasping as to how they work.. Its quite frustrating. I was wondering if anyone knew of any good 'math' websites that would be able to explain something like this well.
The question I am stuck on right now is
And I think you can turn tan into sec 2 x. However, I can't get much farther then that. This is only the third question on my page and I have been sitting here for an hour or so working through them and I'm not getting anywhere. The book we are using gives like 5 total examples for the whole section :(
I kind of have a test on Friday on this stuff, so I need to learn it pretty quickly.
help is appreciated!
Thank you Divideby0 and badgerigar for helping me out last time.