Question

Va rog ajutatima dau coroana​

Answer 1

Răspuns:

a) 3,(5)=3,55...

-3√5=-3×2,236=-6,70...

-5√3=-5×1,732=-8,66...

-8,66 < -6,70 < 3,55

-5√3 < -3√5 < 3,(5)

b) 4/7=0,57...

√4/7=2/7=0,28...

-7/4=-1,75

-1,75 < 0,28 < 0,57

-7/4 < √4/7 < 4/7

c) (4×2+1)/2=9/2=4,5

(-4×3+2)/3=-14/3=-4,66...

√20=2√5=2×2,236=4,47...

-4,66 < 4,47 < 4,5

I -4 intregi2/3I < √20 < 4intregi 1/2

d) (-8×3+1)/3=-25/3=-8,33..

-8,1(3)=-8,133...

-8,3(1)=-8,311...

-8,33 < -8,311 < -8,113

-8 intregi 1/3 < -8,3(1) < -8,1(3))