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Last updated at Aug. 18, 2021 by Teachoo
Transcript
Ex 4.1, 7 Find values of x, if (i) |■8(2&4@5&1)| = |■8(2x&4@6&x)|Calculating |■8(2&4@5&1)| = 2(1) – 5(4) = 2 – 20 = – 18 Calculating |■8(2x&4@6&x)| = 2x(x) – 6 × 4 = 2x2 – 24 Now |■8(2&4@5&1)| = |■8(2x&4@6&x)| Putting values −18 = 2x2 – 24 2x2 – 24 = −18 2x2 = −18 + 24 2x2 = 6 x2 = 6/2 x2 = 3 x = ± √𝟑 Hence, value of x is ± √3
Chapter 4 Class 12 Determinants
Example 14 Important Deleted for CBSE Board 2022 Exams
Example 15 Important Deleted for CBSE Board 2022 Exams
Example 16 Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 7 Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 8 (i) Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 11 (i) Deleted for CBSE Board 2022 Exams
Ex 4.2, 12 Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 13 Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 14 Important Deleted for CBSE Board 2022 Exams
Ex 4.2, 15 (MCQ) Important Deleted for CBSE Board 2022 Exams
Example 18 Important
Ex 4.3, 2 Important
Ex 4.3, 3 (i) Important
Example 24 Important
Example 26 Important
Ex 4.5, 10 Important
Ex 4.5, 15 Important
Ex 4.5, 18 (MCQ) Important
Ex 4.6, 13 Important
Ex 4.6, 15 Important
Ex 4.6, 16 Important
Example 32 Important Deleted for CBSE Board 2022 Exams
Example 34 Important Deleted for CBSE Board 2022 Exams
Misc. 2 Important Deleted for CBSE Board 2022 Exams
Misc 11 Important Deleted for CBSE Board 2022 Exams
Misc. 15 Important Deleted for CBSE Board 2022 Exams
Misc. 16 Important
Misc 19 (MCQ) Important
Chapter 4 Class 12 Determinants
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