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2,1
5. Calculeagă cu două ar odur
(-2)+(-1) +0+1+2=
1/4 x1/3 x1/2x1 x2x3 x4=​


Răspuns :

Răspuns:

0

1

Explicație pas cu pas:

(-2)+(-1)+0+1+2=(-1)+0+1=0

1/4×1/3×1/2×1×2×3×4=1/4×1/3×1×3×4=1/4×1×4=1

[tex]\displaystyle{ (-2) + (-1) + 0 + 1 + 2 = }[/tex]

[tex]\displaystyle{ = -2 -1 + 1 + 2 }[/tex]

[tex]\displaystyle{ =-(2 + 1)+ 3}[/tex]

[tex]\displaystyle{ =-3 + 3 }[/tex]

[tex]\boxed{=0}[/tex]

[tex]\displaystyle{ \frac{1}{4} \cdot \frac{1}{3} \cdot \frac{1}{2} \cdot 1 \cdot 2 \cdot 3 \cdot 4 =}[/tex]

[tex]\displaystyle{ =\frac{1}{12} \cdot \frac{1}{2} \cdot 2 \cdot 3 \cdot 4 }[/tex]

[tex]\displaystyle{ =\frac{1}{24} \cdot 6 \cdot 4 }[/tex]

[tex]\displaystyle{ =\frac{1}{24} \cdot 24 }[/tex]

[tex]\displaystyle{ =\frac{24}{24} }[/tex]

[tex]\boxed{=1}[/tex]