Question

DAU COROANAA !!!!!!!!!!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a = -7,2

b = 0,(6) = 6/9 = 2/3

c = 3 4/5 = (3·5+4)/5 = 19/5

d = -2√3

e = 2√3

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ma (a,b,c,d,e) = (-7,2+2/3+19/5-2√3+2√3)/5 =

= (-72/10 +2/3 + 19/5)/5 = (-36/5 + 19/5 +2/3)/5 =

= [(-36+19)/5 + 2/3]/5 = (-³⁾17/5 + ⁵⁾2/3)/5 =

= [(-51+10)/15]/5 = (-41/15)/5 = -41/75 = -0,54(6)

Numarul -0,54(6) rotunjit cu 1/100 = -0,55