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Supplementary examples and questions from CBSE
Supplementary Example 2 Important Deleted for CBSE Board 2023 Exams
Supplementary Example 3 Deleted for CBSE Board 2023 Exams
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Supplementary Exercise Q1 Deleted for CBSE Board 2023 Exams You are here
Supplementary Exercise Q2 Deleted for CBSE Board 2023 Exams
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Supplementary Exercise Q4 Important Deleted for CBSE Board 2023 Exams
Supplementary Exercise Q5 Deleted for CBSE Board 2023 Exams
Supplementary Exercise Q6 Important Deleted for CBSE Board 2023 Exams
Supplementary Exercise Q7 Deleted for CBSE Board 2023 Exams
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Supplementary Exercise Q9 Important Deleted for CBSE Board 2023 Exams
Supplementary Exercise Q10 Deleted for CBSE Board 2023 Exams
Supplementary examples and questions from CBSE
Last updated at March 16, 2023 by Teachoo
Supplementary Exercise Q1 if đ â = 7đ Ě â 2đ Ě + 3đ Ě, đ â = đ Ě â đ Ě + 2đ Ě and đ â = 3đ Ě + 8đ Ě , then find đ â (đ â Ă đ â) and (đ â Ă đ â). đ â Also Find whether if đ â.(đ â Ă đ â) and (đ â Ă đ â).đ â are equal Given, đ â = 7đ Ě â 2đ Ě + 3đ Ě , đ â = đ Ě â đ Ě + 2đ Ě , đ â = 3đ Ě + 8đ Ě = 3đ Ě + 8đ Ě + 0đ Ě đ â.(đ â Ă đ â) = [đ â" " đ â" " đ â ] = |â 8(7&â2&[email protected]&â1&[email protected]&8&0)| = 7[(â1Ă0)â(8Ă2) ] â (â2) [(1Ă0)â(3Ă2) ] + 3[(1Ă8)â(3Ăâ1)] = 7 [0â16]+2(0â6)+3[8+3] = 7(â16) + 2(â6) + 3(11) = â112 â 12 + 33 = â91 Finding (đ â Ă đ â).đ â = đ â.(đ â Ă đ â) = [đ â" " đ â" " đ â ] = |â 8(3&8&[email protected]&â2&[email protected]&â1&2)| = 3[(â2Ă2)â(â1Ă3) ] â 8[(7Ă2)â(1Ă3) ] + 0[(7Ăâ1)â(1Ăâ2)] = 3[â4+3]â8(14â3)â0 = 3(â1) â 8(11) = â3 â 88 = â91 Hence , đ â.(đ â Ă đ â) = (đ â Ă đ â).đ â