3. Проверь, верны ли неравенства. 478-24-478-(3.9) 356-10-6>356.16 296.80 > 296.(10+8) 134.19 < 134.9.10

• 478 ⋅ 24 < 478 ⋅ (3 ⋅ 9)
• 356 ⋅ 10 ⋅ 6 > 356 ⋅ 16
• 296 ⋅ 80 > 296 ⋅ (10 + 8)
• 134 ⋅ 19 < 134 ⋅ 9 ⋅ 10

1. Проверим первое неравенство:

   478 ⋅ 24 < 478 ⋅ (3 ⋅ 9)

   478 ⋅ 24 < 478 ⋅ 27

   11472 < 12906

   Неравенство верно.

2. Проверим второе неравенство:

   356 ⋅ 10 ⋅ 6 > 356 ⋅ 16

   3560 ⋅ 6 > 5696

   21360 > 5696

   Неравенство верно.

3. Проверим третье неравенство:

   296 ⋅ 80 > 296 ⋅ (10 + 8)

   296 ⋅ 80 > 296 ⋅ 18

   23680 > 5328

   Неравенство верно.

4. Проверим четвертое неравенство:

   134 ⋅ 19 < 134 ⋅ 9 ⋅ 10

   134 ⋅ 19 < 134 ⋅ 90

   2546 < 12060

   Неравенство верно.

Ответ: Все неравенства верны.