profile-img
Vijay posted an Question
February 23, 2021 • 15:38 pm 30 points
  • IIT JAM
  • Mathematics (MA)

If partial derivative f and fy exist at a point (a, b), then (a) continuous but need not differentiable at (a, b) (b) function is differentiable at (a, b) ()con

If partial derivative f and fy exist at a point (a, b), then (a) continuous but need not differentiable at (a, b) (b) function is differentiable at (a, b) ()continuous and differentiable at (a, b) () None of these O a O b O Od For the f(x, y) = 4 fC0,0) is (a)0 (b) 1 (c) 2 (d)-1 O a Ob O c O d

2 Answer(s) Answer Now
  • 1 Likes
  • 5 Comments
  • 0 Shares
  • comment-profile-img>
    Satpal singh

    see f_x and f_y are zero at (0,0) but f is not continuous and not differentiable

    cropped4114521598094615436.jpg
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