Пошаговое объяснение:
а² - в² = (а - в)*(а + в)
(-1. 1/3)² - (5/6)² = (-4/3)² - (5/6)² =
(-4/3 - 5/6) * (-4/3 + 5/6) =
(-8/6 - 5/6) * (-8/6 + 5/6) =
-13/6 * (-3/6) = 39/36 = 13/12 = 1. 1/12
Или:
16/9 - 25/36 = 64/36 - 25/36 = 39/36 =
13/12 = 1. 1/12
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Verified answer
Пошаговое объяснение:
а² - в² = (а - в)*(а + в)
(-1. 1/3)² - (5/6)² = (-4/3)² - (5/6)² =
(-4/3 - 5/6) * (-4/3 + 5/6) =
(-8/6 - 5/6) * (-8/6 + 5/6) =
-13/6 * (-3/6) = 39/36 = 13/12 = 1. 1/12
Или:
(-1. 1/3)² - (5/6)² = (-4/3)² - (5/6)² =
16/9 - 25/36 = 64/36 - 25/36 = 39/36 =
13/12 = 1. 1/12