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February 2, 2022 11:40 am 30 pts
pls once tell . . . . . .. . . . . . . . . . . . .. . . . . . . . .. . . . .
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• Navdeep goyal 1
An is simple for n≥4 and An is abelian for n<3 so Z(An)=I for n≥4 and Z(An)= An for n<3