Question

De la ex 1 la ex 5...

Answer 1

Răspuns:

1.a)amplificam cu 5

b)simplificam prin 6=> 8/15

c)12/5-11/5=1/5

d) A)7/8 B)10/8

b)7/6-(3/12+4/12-6/12)=7/6-1/12=14/12-1/12=13/12

c)13/5-(31/10-5/2+1)=13/5-(31/10-25/10+10/10)=13/5-16/10=26/10-16/10=10/10=1

3.a)9/2n+1=>soluții : 1,2,3

b)3/2n+1=>soluții :0,1,2,3,4,5,6,7,8,9