Evaluate the expression Arcsec (sqrt 2) without using calculaor. Show your solution.

To express the value of the arc secant of the square root of 2 you must first express its cross multiplication process that having variable x as its total then you will came up with sec (x) = sqrt (2) then remember that sec () is equals to 1/cos (x), then its is 1/cos (x) = sqrt (2) then use the special triangle principles withe side length of 1,1 and sqrt (2) and the value of that is pi/4 so x = pi/4 then arcsec (sqrt (2)) = pi/4.