HELP ME PLEASE

WHO IS KNOWLEGABLE WITH THIS?

ALSO CAN YOU JUST TYPE YOUR ANSWER THANK YOU

5.21. Using the definition of the arcsecant function from Problem 51, for what values of x is it true that (a) sec (arcsec x) = x and (b) arcsec (sec x) = x? For reference: 51. One definition of the aresecant function is y = arcsecx(ory = sec"'x) if and only if x = secy, where 0 S y S i and y * w/2. (See Problem 52 for an alternative definition.) Graph y = aresec x, and give the domain and the range of this function. 6.22. Verify that arccot x = m/2 - arctan x, for all real numbers x