Question

Calculati :
$a = (( \frac{5}{2} + \frac{5}{4} - \frac{3}{4} ) \div 5 + \frac{2}{5} ) {}^{2}$
prima paranteza e patrata..cea de a doua este paranteza rotunda.

dau 55 puncte​

Answer 1

Răspuns:

[(5/2+2/4)÷5+2/5]^2=

[(10/4+2/4)÷5+2/5]^2=

(12/4÷5+2/5)^2=

(3÷5+2/5)^2=

(3/5+2/5)^2=

5/5^2=1^2=1

Answer 2

Răspuns:

Explicație pas cu pas: