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WBJEE 2013 Math Solved Paper

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Question : 13

Total: 80

I = (

1	0	0	‌
0	1	0
0	0	1

1	0	0
0	−1	0
0	0	−2

). Then the matrix P3 + 2P2 is equal to

P
I - P
2I + P
2I - P

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