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Sagot :

FAMBEUROSTAND

Explications étape par étape:

48) a- 3^-4=1/3^4=1

b- 2^-4=1/2^4=1/16

49) a- 5^-4=1/5^4=1/624, which is the quotient

b- 10^-8=1/10^8=1/100000000,which is the quotient

c- 3^-1=1/3

d- (-2)^-3= 1/-2^3=1/-8

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