Ответ:
Пошаговое объяснение:
= 1. 7/9 * (-3/4) * 2. 1/3 *а * b =
16/9 * (-3/4) * 7/3 * a * b =
4/3 * (-1/1) * 7/3 * a * b =
-4/3 * 7/3 * a * b = -28/9ab
ab = 2
-28/9ab = -28/9 * 2 = -56/9 = -6. 2/9
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Ответ:
Пошаговое объяснение:
= 1. 7/9 * (-3/4) * 2. 1/3 *а * b =
16/9 * (-3/4) * 7/3 * a * b =
4/3 * (-1/1) * 7/3 * a * b =
-4/3 * 7/3 * a * b = -28/9ab
ab = 2
-28/9ab = -28/9 * 2 = -56/9 = -6. 2/9