\(\mathop {\lim }\limits_{x \to 0} \left[ {\dfrac{{x\cos x - \log (1 + x)}}{{{x^2}}}} \right]\) का मान क्या है?

This question was previously asked in
UP TGT Mathematics 2013 Official Paper
View all UP TGT Papers >
  1. 1
  2. \(\frac{1}{2}\)
  3. 3
  4. 0

Answer (Detailed Solution Below)

Option 2 : \(\frac{1}{2}\)
Free
UP TGT Hindi FT 1
9.8 K Users
125 Questions 500 Marks 120 Mins

Detailed Solution

Download Solution PDF

गणना:

दिया गया है, \(\mathop {\lim }\limits_{x \to 0} \left[ {\dfrac{{x\cos x - \log (1 + x)}}{{{x^2}}}} \right]\)

जो \(\left(\dfrac{0}{0}\right)\)के रूप में है। 

L - हॉस्पिटल नियम का प्रयोग करने पर:

Nr और ωr का अवकलन करने पर

\(= lim_{x\to 0}\left[\dfrac{cosx -x sinx - \frac{1}{1+x}}{2x}\right]\)

फिर से x के संबंध में अवकलन करने पर

\(= lim_{x\to 0}\left[\dfrac{-sinx -( sinx + xcos x)+\frac{1}{(1+x)^2}}{2}\right]\)

x → 0 रखने पर \(= \dfrac{-sin 0^\circ - ( sin 0^\circ + 0. cos 0^ \circ)+ \frac{1}{1+0}}{2}\)

= 1/2

Latest UP TGT Updates

Last updated on May 6, 2025

-> The UP TGT Exam for Advt. No. 01/2022 will be held on 21st & 22nd July 2025.

-> The UP TGT Notification (2022) was released for 3539 vacancies.

-> The UP TGT 2025 Notification is expected to be released soon. Over 38000 vacancies are expected to be announced for the recruitment of Teachers in Uttar Pradesh. 

-> Prepare for the exam using UP TGT Previous Year Papers.

More Relations and Functions Questions

Get Free Access Now
Hot Links: teen patti plus teen patti palace teen patti master list