Question

ajutați -ma va roggg​

Answer 1

Răspuns:

Explicație pas cu pas:

a=0,(5)·(3/5)²-2/25·2,5=5/9·9/25-2/25·25/10=1/5-2/10=1/5-1/5=0

a=0

b=1 1/2·(29/9-3 1/3)²+0,8(3)=3/2·(29/9-10/3)²+(83-8)/90=

3/2·[(29-30)/9]²+75/90=3/2·(-1/9)²+15/18=3/2·1/81+15/18= 1/(2·27)+15/18 =1/54+45/54=46/54=23/27

b=23/27= 0,85

c=0,2-0,2·(0,75-1/4)=2/10-2/10·(75/100-1/4)=1/5-1/5·(3/4-1/4)=1/5-1/5·2/4=1/5-1/10=2/10-1/10=1/10

c=1/10=0,1

Numerele a,b,c in ordine crescatoare: a=0; c=1/10; b=23/27