UPSEE Solved Model Paper 3

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Question : 138 of 150

Marks: +1, -0

If A = [

a	0	0
0	b	0
0	0	c

], then A−1 is equal to

[
a 0 0
0 b 0
0 0 c
]
[
a2 0 0
0 ab 0
0 0 ac
]
[
1
a
0 0
0
1
b
0
0 0
1
c
]
[
−a 0 0
0 −b 0
0 0 −c
]

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