10) So just find a range of values for theta which agree with cos x >0
11) Can't read it properly
12) Oh wait it's just I don't know what that symbol means
13) Just arccos (sqrt2/2) and put it into sin
14) Ditto, arccot
15) Dunno that symbol
Hope this helps, even though I couldn't help with half of them because of that weird symbol
A forum community dedicated to overclocking enthusiasts and testing the limits of computing. Come join the discussion about computing, builds, collections, displays, models, styles, scales, specifications, reviews, accessories, classifieds, and more!