Răspunsuri

2014-06-10T12:49:48+03:00
P=l+l+L+L=342
2l+2L=342 /:2
l+L=171
l=l
L=l+1

l+l+1=171
2l+1=171
2l=171-1
2l=170
l=170:2
l=85
L=85+1
L=86
2014-06-10T13:04:11+03:00
A+a+1+a+2=342
3a+3= 342
3a= 342-3
3a= 339
a= 339:3
a=113
a+1= 114
a+2= 115