Evaluate `int(secx)/((secx+tanx)) dx`.A. `tan x - sec x +C`B. `log(1+sec x)+C`C. `sec x+tan x+C`D. `log sin x+log cos x+C`

Evaluate `int(secx)/((secx+tanx)) dx`.A. `tan x - sec x +C`B. `log(1+s

1.	Evaluate `int(secx)/((secx+tanx)) dx`.A. `tan x - sec x +C`B. `log(1+sec x)+C`C. `sec x+tan x+C`D. `log sin x+log cos x+C`
Answer» Correct Answer - A Let `I=int(secx)/(secx+tanx)dx` `=int(secx(secx-tanx))/(sec^(2)x-tan^(2)x)dx` `=int(sec^(2)x-secxtanx)dx` `=tanx-secx+C`