calcule as potências:
a)(√2)8
b)(7/2)-3
c)(-π)0
d)-(2/3)3
e)3-2
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a) (√2)^8 = 8 : 2 = 4
⁴√ 2
b) (7/2)^-3 =( 2/7)³ = 8/343
c) (-π)° = 1
d)-(2/3)³ = - (8/27) = -8/27
e)3^-2 = (1/3)² = 1/3 . 1/3 = 1/9
⁴√ 2
b) (7/2)^-3 =( 2/7)³ = 8/343
c) (-π)° = 1
d)-(2/3)³ = - (8/27) = -8/27
e)3^-2 = (1/3)² = 1/3 . 1/3 = 1/9
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