Home Physics JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 5 PCM Let be a square matrix of order 3 and matri…
Physics JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 5 PCM MCQ (Single Correct)

Let be a square matrix of order 3 and matrices , and are such that , . If , then is equal to

A
128
B
265
C
256
D
240

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The correct answer is:
D

Here, is a matrix of order 3 and

Let , then

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