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Let A=[2432],B=[13-25],C=[-2534] Find 3A - C - Mathematics

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Question

Let `A = [(2,4),(3,2)] , B = [(1,3),(-2,5)], C = [(-2,5),(3,4)]`

Find  3A - C

Sum
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Solution

`3A -C = 3 [(2,4),(3,2)]-[(-2,5),(3,4)]`

`=[(3xx2,3xx4),(3xx3,3xx2)]-[(-2,5),(3,4)]`

`=[(6,12),(9,6)]-[(-2,5),(3,4)]`

`=[(6+2, 12-5),(9-3, 6-4)]`

`=[(8,7),(6,2)]`

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Chapter 3: Matrices - Exercise 3.2 [Page 80]

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NCERT Mathematics Part 1 and 2 [English] Class 12
Chapter 3 Matrices
Exercise 3.2 | Q 1.3 | Page 80
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