Question

cum sa rezolv?..ajutatima varog

Answer 1

1.
rad 13*2+10=rad 26+10=I6I
rad 5*2+10=rad 20=I2rad5I
I   I=modul
rad-13*2+10=rad-16=I-4I
rad 27*2+10=rad64=I8I
 B raspuns corect

A={4/9,3 rad 2,-7/6,-5,-rad6,rad6/6=1/6,-2rad3}
B={4/9,-7/6,-5,1/6}

a)4/rad2=4rad2/2=2rad2
b)3+rad5/rad5=(3rad5+5)/5
c)6-3rad2/3rad2=(18rad2-18)/18=rad2-1



a)rad 4"2*11"3*2"3=4*11*2 rad 11*2=88rad22
b)rad 12a"2-2a rad 3
c)rad 25x"5=5x"2 rad x

2 rad 11 =rad 44 ridicat la patrat=44
3 rad 7=rad 63 la patrat=63
deci 2rad11<3rad7

-5rad 10=rad 250 la patrat=250
-8rad 5=rad 320 la patrat=320
deci -5rad 10 <-8 rad 5