K4 - 5


. 1.239 - . ­ . 240. , ­ , . 1.241 1.244. , ­, ­ . 1,245 1.248. ­ ­ . 1.249 1.250.

. 1.238 . 1.239

. 1.240 . 1.241 . 1.242 . 1.243

1.244 1.245 . 1.246 . 1.247

. 1.248 . 1.249 . 1.250

. 1.251 . 1.252

 

­ R . 1.251. (. 1.252) : 1=3 10 ( ), =50 , R1 = 10 , R3=10 , R2=R1RUI(R1 + + R3), R=2 , R=10 ( ), = 3 10 ( ).