Question

Dau coroană si la aceasta intrebare!!!

Answer 1

A) (1/1-1/3)*(5/10+1/1)= (3/3-1/3)*(5/10+10/10)= 2/3*15/10=30/30=1 B) (1/1-1/2)*(1/1-1/3)*(1/1-1/4)= (2/2-1/2)*(3/3-1/3)*(4/4-1/4)= 1/2*2/3*3/4=. * Se simplifică 2 cu 2 si 3 cu 3 (1/4)²= 1/16 C) (-1/1+2/3)-³:a/b=(-1/3)-¹ (-3/3+2/3)-³*(-1/3)-¹=a/b (-1/3)-³*(-1/3)-¹=a/b (-1/3)-³-¹=a/b (-1/3)-⁴=a/b a/b=1/81