NTA Abhyas JEE Main2020MathematicsLimitsPractice
The value of lim x → 2 π 1 - sec x sec x ln sec x is equal to
Options
- A0
- B1
- C2
- D- 1
Correct answer
D. - 1
Step-by-step solution
Let, sec ⁡ x = t lim t → 1 ⁡ 1 - t t ln ⁡ t Applying L'Hospital rule, we, get, lim t → 1 ⁡ - t t 1 + ln ⁡ t 1 t = - 1 1 = - 1