bom o professor passou um trabalho com exponenciação o problema e que eu faltei as aulas de exponenciação pq acabei de vim de outra escola:

[tex]a) 4^{-2}

b) (-3)^{-1}

c)(1/3)^{-3}

d)(3/4)^{-2}

e)(1. 1/2)^{-3}

f)(0,7)^{-2}

g) \frac{ 3^{-1}+5^{-1} }{2^{-1}}

h) 3^{-2}+ 2^{-3}

i) 5^2+2^4.4^{-1}




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