Răspuns :
( -2,5) ( la - 2) = 1 / ( -2,5)² = 1 / 2,5² = 1 / 6,25
= 1 / 625 /100 = 100 / 625 = 4 /25
= 1 / 625 /100 = 100 / 625 = 4 /25
(-2,5)^(-2)=1/(-2,5)^2
introducem intregii in fractie
1/(-2,5)^2=1/(5/2)^2=1/(25/4)=4/25=16/100=0.16
introducem intregii in fractie
1/(-2,5)^2=1/(5/2)^2=1/(25/4)=4/25=16/100=0.16