Question

Ex. 12 Va rog
Dau coroana !!

Answer 1

12.
a) 5√14/3 ×(6√2)×√7/5= 5√7 ×2×2×√7/5=7 ×4=28


b)2/7 ×√2×(-14√2)=-2/1 ×2×2=-8

c)2 1/5×√7×3/11×√7=11/5×7×3/11=21/5

d) -2√5×(4√5)×(-√5)= 2√5×4√5×√5=40√5

e) 0,(3)×√18×12√2=3/9×3√2×12√2=3/9×36√2×√2=3/9 ×72=24

f) 2,(3)×√12×(-√8)=-21/9×2√3×2√2=-7/3×4√6=-(28√6)/3