RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 9. Continuity

Subject: Maths - Class 12th

Q. No. 40 of MCQ

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40

Mark the correct alternative in the following:

The points of discontinuity of the


function is (are)


Formula:-


(i) A function f(x) is said to be continuous at a point x=a of its domain, iff



Given:-



Now at x=1




For left hand limit





Therefore continuous at x=1


Now at x=3




For left hand limit




We have,



Therefore discontinuous at x=3

Chapter Exercises

Exercise 9.1
Exercise 9.2
Very short answer
MCQ

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