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b= (3^17 : 9^8)^2000 : (3^5)^400

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Răspuns :

b= [3^17: (3^2)^8]^2000: (3^5)^400

b=(3^17 : 3^16)^2000: 3^2000
b=3^2000:3^200
b=1

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