Exercitiul 1
(La 1 nu am ce model de rezolvare sa iti scriu, la acest tip se scrie raspunsul)
A={-5,-4,-3,-2,-1,0,1}
B={-3,-2,-1,0,1}
C={-3,-2,-1,0,1,2,3}
D={-2,-1,0,1,2,3}
Exercitiul 4
(Aici raspuns si model de rezolvare)
a) 3+(-2)-5 = 3-2-5 = -4
b) 6-(-2)×(-3) = 6+2×(-3) = 6-6 = 0
c) 5÷(-5)+(-5) = -1-6 = -6
d) (-2)³-(-2)² = (-2-1)-(-2)² = -3x2² = -3×4 = -12
e) |-3|+|2| = 3+2 = 5
f) |-5|-|-7| = 5-7 = -2
g) |(-2)²|-|(-2)³| = |2²| - |-2³| = 2²-2³= (1-2)×2² = -1x4 = -4
h) ||-4|-|+6|| = |4-6| = |-2| = 2
i) -1+3{-3-2[-1-(5-3)]}² = -1+3[-3-2(-1-2)]² = -1-3[-3-2x(-3)]² = -1+3(-3+6)² = -1+3x3² = -1+3³ = -1+27 = 26
j) [(-3-1)²+3x(-4)+(-2)³+3x(-1)⁴]³ = [(-4)²-12-8+3x1]³ = (16-12-8+3)³ = (-1)³ = -1
Succes la școală!!
