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Calculati:
A) √2/√18
b) √3/√12
c) √23/2300
d) √52/117
e) √12500/√500
f) √7.5/√0.3


Răspuns :

A) √2/√18=√2/3√2=1/3

b) √3/√12=√3/2√3=1/2

c) √23/2300=√1/100=1/10

d) √52/117=√52/√117=√52*117/117=√6084/117=78/117

e) √12500/√500=100√5/10√5=100/10=10

f) √7.5/√0.3=√75/10/√3/10=√75/√3=√75*3/3=√225/3=15/3=5