“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)