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B
⎡⎢⎣a000b000c⎤⎥⎦
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C
⎡⎢⎣an000bn000cn⎤⎥⎦
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D
Noneofthese
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Solution
The correct option is C
⎡⎢⎣an000bn000cn⎤⎥⎦
Since A2=A.A=⎡⎢⎣a000b000c⎤⎥⎦⎡⎢⎣a000b000c⎤⎥⎦=⎡⎢⎣a2000b2000c2⎤⎥⎦ And A3=⎡⎢⎣a3000b3000c3⎤⎥⎦,....⇒An=An−1.A=⎡⎢⎣an−1000bn−1000cn−1⎤⎥⎦⎡⎢⎣a000b000c⎤⎥⎦ =⎡⎢⎣an000bn000cn⎤⎥⎦