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Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


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Ex 4.1, 7 Find values of x, if (ii) |■8(2&3@4&5)| = |■8(𝑥&3@2𝑥&5)| Now, given that |■8(2&3@4&5)| = |■8(𝑥&3@2𝑥&5)| Putting values –2 = – x 2 = x x = 2 Hence value of x is 2 Calculating |■8(2&3@4&5)| = 2(5) – 4 (3) = 10 – 2 = –2 Calculating |■8(𝑥&3@2𝑥&5)| = x(5) – 2x (3) = 5x – 6x = –x

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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.