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Răspuns:
10. a. 5/6
b. 4/7
c.8/9
d.5/7
e. 9/10
f. 7/12
g. 15/8
h. 14/5
14. a. n= 15+10-9=25-9=16, √16=4
b.n=18+5+13=23+13=36, √36=6
c. n=3·16-4+20=48-4+20=44+20=64, √64=8
d. n=18-7+5·14=11+70=81, √81=9
15. a. n=(24+16):10=40:10=4, √4=2
b. n=18:(16-14)=18:2=9, √9=3
c. n=(30+18):12=48:12=4, √4=2
d. n=12·(17-14)=12·3=36, √36=6