RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 9. Continuity

Subject: Maths - Class 12th

Q. No. 36 of Exercise 9.1

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36

In each of the following, find the value of the constant k so that the given function is continuous at the indicated point :

at x = 2.

Given:


f(x) is continuous at x = 2 & f(2) = k


If f(x) to be continuous at x = 2,then,f(2)– = f(2) + = f(2) LHL = f(2)– =




(a–b)3 = a3–b3–3a2b + 3ab2


(a–b)2 = a2–2ab + b2








7


Since ,f(x) is continuous at x = 2 & f(2) = k


k = 7


Chapter Exercises

Exercise 9.1
Exercise 9.2
Very short answer
MCQ

More Exercise Questions

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2

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3

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6

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7

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12

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15

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16

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17

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18

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20

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21

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22

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23

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24

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26

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27

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28

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29

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30

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31

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32

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33

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34

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35

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36

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