profile-img
Deepak Patra posted an Question
November 19, 2021 • 11:57 am 30 points
  • IIT JAM
  • Mathematics (MA)

13. let lx)= sin x-x+ 3 and g(x)= cos x-1+ for xer. which of the following stateiments are correct? (a.) s(a)2 0 for all x>0 (b.) g is an increasing function on

13. Let lx)= sin x-x+ 3 and g(x)= cos x-1+ for xeR. Which of the following stateiments are correct? (a.) S(a)2 0 for all x>0 (b.) g is an increasing function on 10, o) (c.) g is an decreasing function on 0, o d.) is a decreasing function on |0, o)

1 Answer(s) Answer Now
  • 0 Likes
  • 1 Comments
  • 0 Shares
  • Anonymous User best-answer

    b check attachment

    cropped2006423912453259786.jpg
    eduncle-logo-app

    sir putting x= 0.2 i get f(x) is negative ... how can the option a statement is true ????

    eduncle-logo-app

    .2 in radian

    eduncle-logo-app

    yes sir it giving negative result???

    eduncle-logo-app

    f(x) < 0 then f(x)= has one root others then zero

    eduncle-logo-app

    sir here option a says that for all x € [0, infinity] ,f(x) >= 0 .. but .. putting x= 1 we get f is negative .. so i think option a is wrong .. only option b is correct....

    eduncle-logo-app

    sorry x = 0.2

    eduncle-logo-app

    plz wait I check

    eduncle-logo-app

    okk

    eduncle-logo-app

    you are right

    eduncle-logo-app

    so a wronge

    eduncle-logo-app

    thank you sir

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