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Calculati:
a)  (2/3) la puterea 3
b)    (1/4) la puterea 2
c)  (7/5) la puterea 0
d)  (31/13)1
e) (2    1/2) la puterea 3


Răspuns :

a) (2/3) la puterea 3 
=2^3/3^3
=8/27

b) (1/4) la puterea 2
=1^2/4^2
=1/16

c) (7/5) la puterea 0
=1 orice numar la puterea 0 va da 1

d) (31/13)1
=31^1/13^1
=31/13

e) (2 1/2) la puterea 3
=(2*2+1/2)^3
=(5/2)^3
=5^3/2^3
=125/8