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Question

LetA=[0α00] and (A+I)5050A=[abcd],Then, the value of a+b+c+d is



A

2

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B

1

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C

4

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D

none of these

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Solution

The correct option is C

2


As A2=O, Ak=O  k  2Thus, (A+I)50=I+50A(A+I)5050A=I+50A50A=Ia=1, b=0, c=0, d=1a+b+c+d=2


Mathematics

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