profile-img
Vijay posted an Question
July 30, 2021 • 14:16 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Regn. delm. please send the solution to the problem given in the attachment.

please send the solution to the problem given in the attachment.

1 Answer(s) Answer Now
  • 0 Likes
  • 1 Comments
  • 0 Shares
  • comment-profile-img>
    Deepak singh 1 best-answer

    Refer attached option c

    cropped1542274221067184211.jpg
    eduncle-logo-app

    sorry I changed the axis. doubt

    eduncle-logo-app

    on changing axis , answer should be same . no effect of axis

    eduncle-logo-app

    please answer what is asked for, kindly revisit my doubt

    eduncle-logo-app

    on changing direction , it will be from f(y) =-√(1-y^2) to √(1-y^2)

    eduncle-logo-app

    what is g(y) and m?

    eduncle-logo-app

    please write on paper no, it's clear there.

    eduncle-logo-app

    if we change the axes , then ..

    eduncle-logo-app

    Remember - here we are not finding simple volume so that we can find it directly or in any way . Its surface of revolution , here we have to find using standard formula of volume .

    eduncle-logo-app

    you are integrating along the y axis(i.e.dy) but the bounds of integration is along the z axis, isn't that wron g?

    eduncle-logo-app

    we use this formula I know, but It is hard for me to understand what to put in m, fx , & gx. please explain that in a bit detail.

    eduncle-logo-app

    this formula will not be used here . In your formula revolution axis is different

    eduncle-logo-app

    then what formula is used?

    eduncle-logo-app

    replace x by y (I.e alternate to this )

    eduncle-logo-app

    what should be m?

    eduncle-logo-app

    m=0

    eduncle-logo-app

    how do you know m=0?

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