Subpunctul B
Dau coroana (urgeeeent)


Subpunctul BDau Coroana Urgeeeent class=

Răspuns :

(-3/7)⁴ : (3/7)³ + (-1)³ · 1/14 - (-5/21)² · 8,82 = 3/7 - 1/14 - 25/441 · 882/100 =
Observatie: (-1)⁴ = 1 iar (-1)³ = -1

= 6/14 - 1/14 - 1 · 4 / 2 · 4 = 5/14 - 1/2 = 5/14 - 7/14 = -2/14 = -1/7