Correct, (a + b) ∙ c = a · c + b ∙ c, a + b = b + a, a*(b*c ) = (a*b)*c, (a + b ) - c = a + b - c, (a - b ) * c = a * c - b * c, Incorrect, (a + b) ∙ c = a + b ∙ c, a - b + c = a - c + b, a - b * c = a * c - b, a*b/c = c*b/a, a - b = b - a.

1_algebrai műveletek tulajdonságai

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