“There are two types of people who will tell you that you cannot make a difference in this world: those who are afraid to try and those who are afraid you will succeed.” —Ray Goforth
\sin^{-1}x or \arcsin(x) \cos^{-1}x or \arccos(x) \tan^{-1}x or \arctan(x) \sec^{-1}x or \text{arcsec}(x) cosec^{-1}x or \text{arccosec}(x) \cot^{-1}x or \text{arccot}(x)