 Hello and welcome to the session I am Deepika here. Let's discuss a question which says choose the correct answer integral of e raise to power x secant x into 1 plus tan x dx equals a e raise to power x cos x plus c b e raise to power x secant x plus c c e raise to power x sin x plus c and d e raise to power x tan x plus c. Of the type e raise to power x so this is a key we will take the help of this key idea to solve the above question. So let's start the solution secant x is of the form e raise to power x according to a key idea integral of e raise to power x secant x into 1 plus tan x dx the option b so b is the correct answer. Hope the solution is clear to you. Bye and take care.