Question

Write the value of\[\int\sec x \left( \sec x + \tan x \right)\text{  dx }\]

Answer 1

\[\int\sec x \left( \sec x + \tan x \right) dx\]
\[ = \int\left( \sec^2 x + \sec x \tan x \right) dx\]
\[ = \tan x + \sec x + C\]