Example 1 - Chapter 6 Class 12 Application of Derivatives
Last updated at May 6, 2021 by Teachoo
Transcript
Example 1 Find the rate of change of the area of a circle per second with respect to its radius r when r = 5 cm.We have to find rate of change of area of circle with respect to radius i.e. we need to find (๐ (๐จ๐๐๐ ๐๐ ๐๐๐๐๐๐))/(๐ (๐๐๐ ๐๐๐ ๐๐ ๐๐๐๐๐๐)) = ๐ ๐จ/๐ ๐ We know that Area of circle = ฯ r2 A = ฯr2 Finding ๐ ๐จ/๐ ๐ ๐๐ด/๐๐ = (๐(๐๐2))/๐๐ = ฯ ((๐2))/๐๐ = ฯ (2r) = 2ฯr For r = 5 cm ๐๐ด/๐๐ = 2ฯ (5) = 10ฯ cmx/s
Examples
Example 1
Deleted for CBSE Board 2021 Exams only
You are here
Example 2 Deleted for CBSE Board 2021 Exams only
Example 3 Deleted for CBSE Board 2021 Exams only
Example 4 Important Deleted for CBSE Board 2021 Exams only
Example 5 Deleted for CBSE Board 2021 Exams only
Example 6 Deleted for CBSE Board 2021 Exams only
Example 7
Example 8 Important
Example 9 Important
Example 10
Example 11 Important
Example 12
Example 13 Important
Example 14
Example 15
Example 16
Example 17 Important
Example 18
Example 19
Example 20
Example 21 Deleted for CBSE Board 2021 Exams only
Example 22 Deleted for CBSE Board 2021 Exams only
Example 23 Deleted for CBSE Board 2021 Exams only
Example 24
Example 25
Example 26
Example 27
Example 28 Important
Example 29
Example 30 Important
Example 31
Example 32 Important
Example 33 Important
Example 34
Example 35 Important
Example 36
Example 37 Important
Example 38 Important
Example 39
Example 40 Important
Example 41 Important
Example 42 Important Deleted for CBSE Board 2021 Exams only
Example 43 Important Deleted for CBSE Board 2021 Exams only
Example 44 Important Deleted for CBSE Board 2021 Exams only
Example 45 Important
Example 46 Important
Example 47 Important
Example 48 Important
Example 49 Deleted for CBSE Board 2021 Exams only
Example 50 Important
Example 51
Chapter 6 Class 12 Application of Derivatives
Serial order wise
About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.