Question

1. ОПРЕДЕЛИТЕ ЗНАК ПРОИЗВЕДЕНИЯ
1) + * - * - * + * - * - * + * + * - * + * + * -
2) - * - * - * + * + * + * - * + * + * - * - * -
3) - * - * - * + * + * -* + * -* + * - * -
4) - * + * - * - * + * + * - * + * - * -* + * -
5) + * - * - * + * - * + * + * -
6) - * - * - * + * + * + * - * -
7) - * - * + * - * + * - * -
8) - * + * + * + * - * + * - * -

Answer 1

1. +
2. -
4. -
5. +
6. -
7. -
8. +

Answer 2

А 3 ?

Answer 3

3. - Пропустила.