Question

valoarea nr n=radical din54*0,(6)+radical din 540*0,0(6)+radical din5400*0,00(6) este????va rog imi trebuie urgent!!!!

Answer 1

=√54*2/3+√540*1/15+√5400*1/150=√108/3+√540/15+√5400/150= √36+√36+√36= 6+6+6=18

Answer 2

√54·0,(6)=√54·6/9=√6^2=6
√540·0,0(6)=√540·6/90=6
√5400·0,00(6)=√5400·6/900=6
n=6+6+6=18