Evaluate ∫sec x dx.
Evaluate ∫sec x dx.
- A. ln|sec x + tan x| + C
- B. ln|sec x − tan x| + C
- C. tan x + C
- D. sec x tan x + C
Answer: A) ln|sec x + tan x| + C
Explanation: Standard integral: Multiply numerator and denominator by (sec x + tan x). Then substitute u = sec x + tan x. Result is ln|sec x + tan x| + C.
0 Answers
Log in to post your own answer or join the discussion.
No comments yet — start the discussion.