# Ex 1.3, 2 - Chapter 1 Class 12 Relation and Functions

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 1.3, 2 (Introduction) Let f, g and h be functions from R to R. Show that (f + g)oh = foh + goh (f.g)oh = (foh).(goh) Let f(x) = x, g(x) = sin x , h(x) = log x We will show (f + g) oh = foh + goh Let f(x) = x, g(x) = sin x , h(x) = log x To prove: We will show (f .g) oh = foh . goh (f .g) oh = foh . goh Ex 1.3, 2 Let f, g and h be functions from R to R. Show that (f + g)oh = foh + goh & (f.g) oh = (foh).(goh) Proving (f + g) oh = foh + goh L.H.S (f + g)oh = (f + g) (h(x)) = f (h(x)) + g (h(x)) = foh + goh = R.H.S Hence, (f + g) oh = foh + goh Proving (f .g) oh = foh . goh L.H.S (f . g)oh = (f . g) (h(x)) = f (h(x)) . g (h(x)) = foh . goh = R.H.S Hence, (f . g) oh = (foh) . (goh)

Ex 1.3

Ex 1.3, 1
Deleted for CBSE Board 2022 Exams

Ex 1.3, 2 Deleted for CBSE Board 2022 Exams You are here

Ex 1.3, 3 Important Deleted for CBSE Board 2022 Exams

Ex 1.3 , 4 Deleted for CBSE Board 2022 Exams

Ex 1.3, 5 Important Deleted for CBSE Board 2022 Exams

Ex 1.3 , 6 Deleted for CBSE Board 2022 Exams

Ex 1.3 , 7 Deleted for CBSE Board 2022 Exams

Ex 1.3 , 8 Important Deleted for CBSE Board 2022 Exams

Ex 1.3 , 9 Important Deleted for CBSE Board 2022 Exams

Ex 1.3, 10 Important Deleted for CBSE Board 2022 Exams

Ex 1.3, 11 Deleted for CBSE Board 2022 Exams

Ex 1.3, 12 Deleted for CBSE Board 2022 Exams

Ex 1.3 , 13 Important Deleted for CBSE Board 2022 Exams

Ex 1.3 , 14 Important Deleted for CBSE Board 2022 Exams

Chapter 1 Class 12 Relation and Functions (Term 1)

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.