Ответ:
2
Объяснение:
Р(АВСD)=AB+BC+CD+AD;
P(ADEF)=AD+ED+FE+FA;
FE=BC=x; AD=y
P(ABCD)=AB+x+CD+y
P(ADEF)=y+ED+x+FA
P(ABCD)-P(ADEF)=AB+x+CD+y-(y+ED+x+FA)=4
=AB+x+CD+y-y-ED-x-FA=AB+CD-ED-FA=
=4+2-3-1=2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
2
Объяснение:
Р(АВСD)=AB+BC+CD+AD;
P(ADEF)=AD+ED+FE+FA;
FE=BC=x; AD=y
P(ABCD)=AB+x+CD+y
P(ADEF)=y+ED+x+FA
P(ABCD)-P(ADEF)=AB+x+CD+y-(y+ED+x+FA)=4
=AB+x+CD+y-y-ED-x-FA=AB+CD-ED-FA=
=4+2-3-1=2