Ex 3.2

Chapter 3 Class 12 Matrices
Serial order wise

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### Transcript

Ex 3.2,10 Solve the equation for x, y, z and t, if 2[โ 8(๐ฅ&๐ง@๐ฆ&๐ก)] + 3 [โ 8(1&โ[email protected]&2)] = 3 [โ 8(3&[email protected]&6)] 2[โ 8(๐ฅ&๐ง@๐ฆ&๐ก)] + 3 [โ 8(1&โ[email protected]&2)] = 3 [โ 8(3&[email protected]&6)] [โ 8(๐ฅร2&๐งร[email protected]๐ฆร2&๐กร2)] + [โ 8(1ร3&โ1ร[email protected]ร3&2ร3)] = [โ 8(3ร3&5ร[email protected]ร3&6ร3)] [โ 8(2๐ฅ&2๐ง@2๐ฆ&2๐ก)] + [โ 8(3&โ[email protected]&6)] = [โ 8(9&[email protected]&18)] [โ 8(2๐ฅ+3&2๐งโ[email protected]๐ฆ+0&2๐ก+6)] = [โ 8(9&[email protected]&18)] [โ 8(2๐ฅ+3&2๐งโ[email protected]๐ฆ&2๐ก+6)] = [โ 8(9&[email protected]&18)] Since matrices are equal. Corresponding elements are equal 2x + 3 = 9 2y = 12 2z โ 3 = 15 2t + 6 = 18 Solving equation (1) 2x + 3 = 9 2x = 9 โ 3 x = 6/2 x = 3 Solving equation (2) 2y = 12 y = 12/2 y = 6 Hence x = 3 , y = 6 , z = 9 & t = 6

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#### Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.