# Supplementary Exercise Q2

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Supplementary Exercise Q2 If = 2 3 + 4 , = + 2 6 and = 3 + 2 , then (i) find Given, = 2 3 + 4 , = + 2 , = 3 + 2 = 2 3 4 1 2 1 3 1 2 = 2 2 2 ( 1 1) ( 3) 1 2 (3 1) + 4 1 1 (3 2) = 2 4 1 +3 2+3 +4 1 6 = 2(3) + 3 (5) + 4( 7) = 6 + 15 28 = 7 Supplementary Exercise Q2 (Method 1) If = 2 3 + 4 , = + 2 6 and = 3 + 2 , then (ii) find + + + Given, = 2 3 + 4 , = + 2 , = 3 + 2 We need to find + + + + = (2 3 + 4 ) + ( + 2 ) = 3 + 3 + = ( + 2 ) + (3 + 2 ) = 4 + + + = (3 + 2 ) + (2 3 + 4 ) = 5 4 + 6 + + + = 3 1 3 4 1 1 5 4 6 = 3 1 6 ( 4 1) ( 1) 4 6 (5 1) + 3 4 4 (5 1) = 3 6+4 +1 24 5 +3 16 5 = 3(10) + 1 (19) + 3( 21) = 30 + 19 63 = 14 + + + = 14 Supplementary Exercise Q2 (Method 2) If = 2 3 + 4 , = + 2 6 and = 3 + 2 , then (ii) find + + + We need to find + + + We know that + + + = 2 = 2( 7) = 14

Supplementary examples and questions from CBSE

Supplementary Example 1
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Supplementary Example 2 Deleted for CBSE Board 2021 Exams only

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Supplementary Exercise Q1 Deleted for CBSE Board 2021 Exams only

Supplementary Exercise Q2 Deleted for CBSE Board 2021 Exams only You are here

Supplementary Exercise Q3 Deleted for CBSE Board 2021 Exams only

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Supplementary Exercise Q10 Deleted for CBSE Board 2021 Exams only

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.