# Ex 7.11, 19 - Chapter 7 Class 12 Integrals (Term 2)

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 7.11, 19 Show that _0^ ( ) ( ) =2 _0^ ( ) , if f and g are defined as ( )= ( ) and ( )+ ( )=4 Let I = _0^ ( ) ( ) I = _0^ ( ) [4 ( )] I = _0^ [4. ( ) ( ) ( )] I = 4 _0^ ( ) _0^ ( ) ( ) I = 4 _0^ ( ) _0^ ( ) ( ( )) I = 4 _0^ ( ) _0^ ( ) ( ) I =4 _0^ ( ) I I +I=4 _0^ ( ) 2I=4 _0^ ( ) I=2 _0^ ( ) _0^ ( ) ( ) =2 _0^ ( ) Hence Proved

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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.