heyy somi...its not possible to explain you here all the graphs but one thing that u can do is to surf the website www.wolframalpha.com....in this site go under section of sketching the graph....or simply write sin^-1x,cosx....etc...it will sketch the graph for you then observe them carefully....after that ask any doubt if u hav.....BEST OF LUCK....

Dear Somy,

sin^-1(sinx) is nothing but just x

so the graph is a linear graph joining points

(0,0) (1,1) (2,2) etc..,

tan^-1tanx graph is also the same