Question

Calcule as potências seguintes:a) 3^-4 b) 0,01^-1 x 10^3

Answer 1

$3^{-4} = ( \frac{1}{3}) ^{4} = \frac{1}{3}. \frac{1}{3}. \frac{1}{3} . \frac{1}{3} = \frac{1}{81} \\ \\ ( 0,01)^{-1} . 10^{3 } = ( \frac{1}{100}) ^{-1} . 1000= 100^{1} . 1000= 100 . 1000 = 100000$

Answer 2

A)
3^-4

1/3^4

1/81
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B)
0,01^-1*10^3

1/0,01*1000

1000/0,01

1000/10^-2

1000*10²

1000*100

100000