Răspuns:
5. a) [tex]\sqrt{\frac{16}{25}[/tex]=raradical4^2/radical25=radical4^2/radical5^2=4/radical5^2=4/5
radical=r
b)[tex]\sqrt{\frac{81}{64} }[/tex]=[tex]\sqrt{\frac{21}{16} }[/tex]=r21/4
c)[tex]\sqrt{} \frac{9}{49}[/tex]=r3^2/r49=r3^2/r7^2=3/r7^2=3/7
g)[tex]\sqrt{} \frac{196}{289}[/tex]=r14^2/r17^2=14/r17^2=14/17
h)[tex]\sqrt{} \frac{625}{324}[/tex]=r25^2/r18^2=25/r18^2=25/18
i)[tex]\sqrt{} \frac{169}{256}[/tex]=r13^2/r16^2=13/r16^2=13/16
m)[tex]\sqrt{} \frac{576}{729}[/tex]=64/81=8/9
n)[tex]\sqrt{} \frac{784}{1225}[/tex]=[tex]\sqrt{} \frac{16}{25}[/tex]=4/5
6. a)r2.7/9=[tex]\sqrt{} \frac{25}{9}[/tex]=5/3
b)r5.19/25=[tex]\sqrt{} \frac{144}{25}[/tex]=12/5
f)r4.25/36=[tex]\sqrt{} \frac{167}{36}[/tex]=r167/6
g)r4.33/64=[tex]\sqrt{} \frac{289}{64}[/tex]=17/8
