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Question 12 - CBSE Class 12 Sample Paper for 2023 Boards - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at Dec. 13, 2024 by Teachoo

If |2&4 5&1)|=|(2x&4 6&x)|, ๐‘กℎ๐‘’๐‘› ๐‘กℎ๐‘’ ๐‘๐‘œ๐‘ ๐‘ ๐‘–๐‘๐‘™๐‘’ value(s) of ‘x’ is/are

(a) 3  

(b) √3 

(c) -√3   

(d) √3, -√3

 

Transcript

Question 12 If |โ– 8(2&4@5&1)|=|โ– 8(2๐‘ฅ&4@6&๐‘ฅ)|, ๐‘กโ„Ž๐‘’๐‘› ๐‘กโ„Ž๐‘’ ๐‘๐‘œ๐‘ ๐‘ ๐‘–๐‘๐‘™๐‘’ value(s) of โ€˜xโ€™ is/are (a) 3 (b) โˆš3 (c) โˆ’โˆš3 (d) โˆš3, โˆ’โˆš3Given |โ– 8(2&4@5&1)|=|โ– 8(2๐‘ฅ&4@6&๐‘ฅ)| 2 ร— 1 โˆ’ 5 ร— 4 = 2x ร— x โˆ’ 6 ร— 4 2 โˆ’ 20 = 2x2 โˆ’ 24 โˆ’18 = 2x2 โˆ’ 24 โˆ’18 + 24 = 2x2 6 = 2x2 2x2 = 6 x2 = 6/2 x2 = 3 x = ยฑ โˆš๐Ÿ‘ Thus, x = โˆš3, โˆ’โˆš3 So, the correct answer is (d)
  1. Class 12
  2. Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

    3. CBSE Class 12 Sample Paper for 2023 Boards

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Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

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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 14 years. He provides courses for Maths, Science and Computer Science at Teachoo