Hey guys, I'm stuck on these 3 probs. I'll be trying to work on them for an hour or so, but I don't have any more time for them tonight. Any help MUCH appreciated. I tried the third one but got stuck, you would think the hint would help me out(d'oh!) Thanks for any help.
Evaluate the following without a calculator.
3. Sin[2csc^-1(5/3)] Hint: Let csc^-1(5/3) = theta, then use the appropriate double angle formula.