Question

Va rog frumos facetimi si mie ex de la 1-5 dar sa numi doar completati si explicatimi va roggg !!dau 75 puncte+coroana

Answer 1

1.AP/AB=2/5=>2AB=3AP=>AB=3AP/2
AP+PB=AB
AP+1=3AP/2
AP-3AP/2=-1
-AP=-1X2
-AP=-2   (-1)
AP=2CM
AB=AP+PB=2+1=3CM

Answer 2

1.
A-------P-----------B
AP/AB=2/5    AP=2AB/5
PB=1
AP=AB-PB=AB-1
AB-1=2AB/5
5AB-5=2AB
3AB=5
AB=5/3

2.
PB/AP=3/11        PB/(AP+PB)=3/(3+11)=3/14    PB/35=3/14
PB=3×35/14=7,5
AP=35-7,5=27,5

3.
A--------M------P--------B
AM/MB=4/7          AM=4        
AP/PB=7/4           AP=7  ⇒MP=7-4=3    PB=4     MP/PB=3/4

4.
AM/MB=2/5          
AN/AB=3/7          
AM/AN=2/3

5.
A----------E----F------------------B
AE/EB=5/11               AB=AE+EB=5+11=16
AF/FB=3/5=6/10       AB=AF+FB=6+10=16
EF/BE=(6-5)/16-5=1/11