Question

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2) calcule

a) $0,2 ^{2}$
b)$0,1 ^{-1}$
c)$0,05 ^{-2}$
d)$1,25 ^{-1}$
e) $1,2 ^{3}$
f)$(-3,2 )^{2}$
g)$0,6 ^{3}$
h)$0,08 ^{-1}$
i)$(-0,3) ^{-1}$
j)$( -0,01) ^{-2}$


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Answer 1

a) (0,2)² = 0,04

b) 0,1^-1 = (1/10)^-1 = 10

c) 0,05^-2 = (5/100)^-2 =  = (100/5)^2 =  20^2 ==> 400

d) 1,25^-1 = (125/100)^-2 = (100/125)^2 =  (4/5)^2 ==> 16/25

e) 1,2³  = (12/10)^³ = 1728/1000

f) (-3,2)² = 10,24 ==> 1024/100

g) 0,6³ = 0,216 ==> 216/1000

h) 0,08^-1 = ( 8/100)^-1 ==> 100/8

i)(0,3)^-1 = ( 3/10)^-1 ==> 10/3

j) (0,01)^-1 = ( 1/100)^-1 ==> 100