<span>×⁴ = 625;
(×-8)⁴ = 16;
2×⁴ + 36 = 0;
5×⁸ - 10 = 0;
⁴√× - 2 = 0;
³√× - 2 = 0;
⁶√× + 3 = 0;
⁴√2× - 2 = 0;
⁴√2×-2=0;
⁴√3×+1 = 2;
2×¹² - 5×⁶ + 3 =0;
×⁸ - 5×⁴ - 36 = 0;
√× - 8⁴√× =0;
4∛× - 20⁶√× + 25 = 0;</span>
Решить систему:
решаем неравенства
1)
+ - +
-----7----------81---
2)
1. 0.25x²>1; x∈(-oo;-2)∪(2;+oo)
x∈(-oo;-3]∪[4;+oo)
2) 0<0.25x²<1; x∈(-2;2)
x∈[-3;4] и с учетом условия x∈(-2;2)
объединяем все промежутки
---- (- 4) -------( - 3) ------( - 2) -------( - log₃7)-------(2 )----- (4 )----
///// ////////////////////////////////////////
\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\
ответ : (-oo;-4)∪(-log₃7;2)∪(4;+oo)
А₁₁=-11,9+7,8·11=-11,9+85,8=73,9
= 2*корень из 3 /2 + 1 = корень из 3 + 1