Aptitude – Mathematical/Numerical Concepts
Class 12 / Mathematics
Aptitude – Mathematical/Numerical Concepts
Question 6 of 70Book: TN-MATH-12-V1Chapter 1
A = மற்றும் B = எனில், |adj(AB)| =
A
-40
B
-80
C
-60
D
-20
Correct AnswerB.
-80
Explanation
|A| = 10 - 0 = 10 மற்றும் |B| = 0 - 8 = -8. எனவே |AB| = |A||B| = 10(-8) = -80. 2×2 வரிசையுடைய அணிக்கு |adj(AB)| = |AB|²⁻¹ = |AB| = -80 ஆகும்.