1) 24 : 3 = x
2) 24 : x = 3
3) x : 3 = 8
Ответ:
Пошаговое объяснение:
1) |x| = 3
x = ±3
2) |x-3| = 2
x+3 = 2
x = ±1
3) |x-4| = 0
x - 4 = 0
x = ±4
4) |x+3| = -4
x + 3 = -4
x = -7
5) |x| + 1 = 7
x = ±6
6) |x| - 2 = -3
x - 2 = -3
x = -1
7) 3 |x| - 1 = 0
3x - 1 = 0
3x = 1
x =
8) 2 |x| + 3 = 0
2x+3 = 0
2x = -3
x = -
9) |3x+2| - 4 = 0
3x+2-4 = 0
3x = 2
x = 3/2
10) |2x-1| + 7 = 8
2x+1+7 = 8
2x = 0
Из модуля выходят только ПОЛОЖИТЕЛЬНЫЕ ЧИСЛА!
1 пара - человека.
8 человек : 2 = 4 пары.
2sin x = -√2
sin x =-√2/2
sin x = 5π/4
(3/4 - 8/5) + 17/20 = 15/20 - 32/20 + 17/20 = 32/20 - 32/20 = 0