Răspuns:
Explicație pas cu pas:
a)
=4/3-5/6*12/5
= 4/3- ³⁾2
=4/3-6/3
= - 2/3
-
b)
=2,89+5-4,2
= 7,89-4,2
=3,69
-
c)
=3-2/5*{ 3-2/5*[3-2/5*(⁶⁾1-1/6)]}
= 3-2/5*{ 3-2/5*[ 3-2/5*(6/6-1/6)]}
= 3-2/5*[ 3-2/5*(3-2/5*5/6)]
= 3-2/5*[ 3-2/5*(³⁾3-1/3)]
= 3-2/5*[3-2/5*(9/3-1/3)]
= 3-2/5*(3-2/5 *8/3)
= 3- 2/5*(¹⁵⁾3-16/15)
=3-2/5*(45/15-16/15)
= 3-2/5*29/15
= ⁷⁵⁾3-58/75
=225/75-58/75
=167/75
-
d)
=1- 9,75 +24-1
= - 8,75+24-1
= 15,25-1
= 14,25
