32²⁻³ˣ≥32¹
2-3х≥1
-3х≥1-2
-3х≥-1
3х≤1
х≤1/3
х∈(-∞; 1/3]
45ц - 45тыс кг.
1)45000:одна пятая=9000 кг на лошадей
2)45000-9000=36000
3)36000/9 = 4000 коров
4÷y=16/3÷4/3
4÷y=16/3×3/4
4÷y=4
y=1
2,43 : 1,5 = 1,62 (м) израсходовали на юбку.
2,43 + 1,62 = 4,05 (м) израсходовали на пиджак и юбку
Если в номерах 3 и 4 подразумевалось деление на числа (4 и 1), а не на сумму, то решения следующие (иначе ответы другие):
![ 1) 3+i/3-i=3+- \frac{2i}{3} \\ 2) i^3*i^4*i^{15} = i^{3+4+15} = i^{22}\\ 3) 1+4i/4-5i=1+i-5i=1-4i\\ 4)1-2i/1+2i=1-2i+2i=1\\ 5) i^{258}=(i^{2})^{129} = (-1)^{129} = -1 \\ 6) i^{1024}=((i^{2})^2)^{256}=((-1)^2)^{256}=1^{256}=1\\ 7) i^{25}+i^{258}=(i^{24})*i-1=((i^4)^6)*i-1=(((i)^2)^2)^6-1=\\((-1)^2)^6-1=1^6-1=1-1=0\\ 8) i^{228}/i^{252}=i^{228-252}=i^{-24}= \frac{1}{i^{24}}=\frac{1}{(i^{4})^6}=\frac{1}{((-1)^2)^6}=\frac{1}{1^6}=\frac{1}{1}=1\\](https://tex.z-dn.net/?f=%0A1%29+3%2Bi%2F3-i%3D3%2B-+%5Cfrac%7B2i%7D%7B3%7D+%5C%5C%0A2%29+i%5E3%2Ai%5E4%2Ai%5E%7B15%7D+%3D+i%5E%7B3%2B4%2B15%7D+%3D+i%5E%7B22%7D%5C%5C%0A3%29+1%2B4i%2F4-5i%3D1%2Bi-5i%3D1-4i%5C%5C%0A4%291-2i%2F1%2B2i%3D1-2i%2B2i%3D1%5C%5C%0A5%29+i%5E%7B258%7D%3D%28i%5E%7B2%7D%29%5E%7B129%7D+%3D+%28-1%29%5E%7B129%7D+%3D+-1+%5C%5C%0A6%29+i%5E%7B1024%7D%3D%28%28i%5E%7B2%7D%29%5E2%29%5E%7B256%7D%3D%28%28-1%29%5E2%29%5E%7B256%7D%3D1%5E%7B256%7D%3D1%5C%5C%0A7%29+i%5E%7B25%7D%2Bi%5E%7B258%7D%3D%28i%5E%7B24%7D%29%2Ai-1%3D%28%28i%5E4%29%5E6%29%2Ai-1%3D%28%28%28i%29%5E2%29%5E2%29%5E6-1%3D%5C%5C%28%28-1%29%5E2%29%5E6-1%3D1%5E6-1%3D1-1%3D0%5C%5C%0A8%29+i%5E%7B228%7D%2Fi%5E%7B252%7D%3Di%5E%7B228-252%7D%3Di%5E%7B-24%7D%3D+%5Cfrac%7B1%7D%7Bi%5E%7B24%7D%7D%3D%5Cfrac%7B1%7D%7B%28i%5E%7B4%7D%29%5E6%7D%3D%5Cfrac%7B1%7D%7B%28%28-1%29%5E2%29%5E6%7D%3D%5Cfrac%7B1%7D%7B1%5E6%7D%3D%5Cfrac%7B1%7D%7B1%7D%3D1%5C%5C)
Девятое напечатано неразборчиво.