Neha posted an Question
April 09, 2020 • 03:48 am 30 points
  • IIT JAM
  • Mathematics (MA)

Sin (log x)dx is equal to (a) (c) sin (log x - n/4)+ c sin (log x+ /4)+c (b) sin (log x - /4) +c (d) sin (log x + r/4) +c

sin (log x)dx is equal to (A) (C) sin (log x - n/4)+ C sin (log x+ /4)+c (B) Sin (log x - /4) +c (D) sin (log x + r/4) +c

1 Answer(s) Answer Now
  • 1 Likes
  • 2 Comments
  • 0 Shares
  • Srinath

    Substitute for logx = t. Then dx/x = dt. But you can write x as e^t. Therefore the expression in the integral becomes (e^t *sint) which can be integrated. Formula exists. After integration, you can replace t with logx

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers