0.06
0.14
0.40=0.4
0.84
1.60=1.6
6.00=6
![{25}^{x}-4,25*{50}^{x}+{100}^{x}=0 \\ {25}^{x}(1-4,25*{2}^{x}+{4}^{x})=0 \\ 1-4,25*{2}^{x}+{4}^{x}=0 \\ {2}^{x}=a \\ 1-4,25a+{a}^{2}=0 |*4 \\ 4a^2-17a+4=0 \\ D=17^2-8^2=(17-8)(17+8)=9*25=225=15^2 \\ a_1=\frac{17-15}{8}=\frac{1}{4} \\ a_2=\frac{17+15}{8}=4 \\ \\ \\ {2}^{x}=\frac{1}{4} \\ {2}^{x}={2}^{-2} \\ x_1=-2 \\ \\ {2}^{x}=4 \\ {2}^{x}={2}^{2} \\ x_2=2](https://tex.z-dn.net/?f=%7B25%7D%5E%7Bx%7D-4%2C25%2A%7B50%7D%5E%7Bx%7D%2B%7B100%7D%5E%7Bx%7D%3D0+%5C%5C+%7B25%7D%5E%7Bx%7D%281-4%2C25%2A%7B2%7D%5E%7Bx%7D%2B%7B4%7D%5E%7Bx%7D%29%3D0+%5C%5C+1-4%2C25%2A%7B2%7D%5E%7Bx%7D%2B%7B4%7D%5E%7Bx%7D%3D0+%5C%5C+%7B2%7D%5E%7Bx%7D%3Da+%5C%5C+1-4%2C25a%2B%7Ba%7D%5E%7B2%7D%3D0+%7C%2A4+%5C%5C+4a%5E2-17a%2B4%3D0+%5C%5C+D%3D17%5E2-8%5E2%3D%2817-8%29%2817%2B8%29%3D9%2A25%3D225%3D15%5E2+%5C%5C+a_1%3D%5Cfrac%7B17-15%7D%7B8%7D%3D%5Cfrac%7B1%7D%7B4%7D+%5C%5C+a_2%3D%5Cfrac%7B17%2B15%7D%7B8%7D%3D4+%5C%5C+%5C%5C+%5C%5C+%7B2%7D%5E%7Bx%7D%3D%5Cfrac%7B1%7D%7B4%7D+%5C%5C+%7B2%7D%5E%7Bx%7D%3D%7B2%7D%5E%7B-2%7D+%5C%5C+x_1%3D-2+%5C%5C+%5C%5C+%7B2%7D%5E%7Bx%7D%3D4+%5C%5C+%7B2%7D%5E%7Bx%7D%3D%7B2%7D%5E%7B2%7D+%5C%5C+x_2%3D2)
Сумма корней: -2+2=0
Из перечисленных промежутков, принадлежит промежутку (-1;0]
15.54 /(-4.2)-2.5*1.4+1.08=-3.7-3.5+1.08=-6.12
psixoo, при делении положительного нс отрицательнте получится отрицательное
S = (a+b)/2 • h = (5+3)/2 • 3 = 4•3 = 12
<span>х+1\9х= 1 7\18
9x^2/9x=25/18
x=25/18</span>