Question

Cine ma ajuta la exercitiul 3?? Vă roog! e urgent!

Answer 1

a)->1)
b)->3)
c)->5)
d)->2)

a) 2/(V2)=(2V2)/2=V2, "V"=radical
b) (V2)^3=V8=V4 x V2=2V2
c) V18+V32-3V8+2V2=3V2+4V2-6V2+2V2=3V2
d) lV5-2V2l+lV5-V2l=-V5+2V2+V5+V2=V2

Answer 2

a) 2/rad 2= 2rad2/2 = rad2
opusul lui rad 2 este - rad2
a------>1

b) (rad 2)^3= 2 rad 2
b------>3

c) 3 rad 2 + 4 rad 2 - 6 rad 2 + 2 rad 2= 3 rad 2
c------->5

d) | rad 5- rad 8| + | rad 5 - rad 2| = rad 8 - rad 5 + rad 5 - rad 2= 2 rad 2 - rad 2 = rad 2
d------->2