Aptitude – Mathematical/Numerical Concepts
Class 12 / Mathematics
Aptitude – Mathematical/Numerical Concepts
Question 3 of 70Book: TN-MATH-12-V1Chapter 1
A = B = adj A மற்றும் C = 3A எனில், |adj B| / |C| =
A
1/3
B
1/9
C
1/4
D
1
Correct AnswerB.
1/9
Explanation
இங்கு |A| = (3)(2) - (5)(1) = 1. B = adj A என்பதால் |B| = |adj A| = |A|²⁻¹ = 1. எனவே |adj B| = |B|¹ = 1. மேலும் |C| = |3A| = 3²|A| = 9(1) = 9. ஆதலால் |adj B| / |C| = 1/9 ஆகும்.