Question

comparati numerele rationale pozitive 2 pe 5 si x unde​

Answer 1

Raspuns:

9/25<2/5

Explicație pas cu pas:

x=[1-(3/10+8/15)×12/25]^2

x=(1-5/6×12/15)^2

x=(1-5×2/25)^2

x=(1-2/5)^2

x=(3/5)^2

x=3^2/5^2

x=9/25

9/25=45

2/5=50

45<50

ADICA

9/25<2/5

Answer 2

Răspuns:

2/5>x

Explicație pas cu pas:

x=[1-(3/10+8/15)×12/25]^2

x=(1-5/6×12/15)^2

x=(1-2/5)^2

x=(3/5)^2

x=9/25

x=0,36 si 2/5=0,4 => 2/5>9/25(x)