Complete the following exercise:(−12)⋅(−2)= (-\frac{1}{2})\cdot(-2)= (−21)⋅(−2)=
Let's recall the rule:
(−x)×(−x)=+x (-x)\times(-x)=+x (−x)×(−x)=+x
Therefore, the sign of the exercise result will be positive:
−12×−2=+1 -\frac{1}{2}\times-2=+1 −21×−2=+1
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