Вопрос школьника по предмету Алгебра
Определите четверть, в которой лежит угол.
10) 4п/6
11) 11п/6
12) 7п/3
13) -2п/3
14) -2/5п
15)-7/6п
16)-0,8п
17)-0,4п
18)1
19) 4
20)п+1
Ответ учителя по предмету Алгебра
10-2
11-4
12-1
13-3
14-ошибка
15-2
16-1
17-3
18-1
19-3
20-3
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А) Фінікійці
Б) перси
В) єгиптяни
Г) греки