1.13.1:4=3.275
2.2.5:27=0.09
3.10.5:6=1.75
4.3.275-0.09=3.185
5.3.185-1.75=1.435
6.1.435*230.04=330.1074
330.1074+46.75=376.8574
f'=2/(3+2x)......................................................
4 + 2 ^ X = 2 ^ ( 2x - 1 )
4 + 2 ^ X - 2 ^ ( 2x - 1 ) = 0
4 + 2 ^ X - 2 ^ 2x • 0,5 = 0
2 ^ X = a ; 2 ^ 2x = a^2 ; a > 0
- 0,5a^2 + a + 4 = 0
D = 1 + 8 = 9 = 3^2
a1 = ( - 1 + 3 ) : ( - 1 ) = - 2 ( < 0 )
a2 = ( - 1 - 3 ) : ( - 1 ) = 4
2 ^ X = 4
2 ^ X = 2 ^ 2
X = 2
Ответ 2
A1-2
A2-3
A3-1
A4-1
А5 не видно ответов