Ask your own question, for FREE!
Mathematics 37 Online
OpenStudy (anonymous):

hI... how to proof (AXB).(CXD)+(BXC).(AXD)+(CXA).(BXD)=0

OpenStudy (shadowfiend):

Hm. Are you trying to prove that without any information at all about A, B, C, and D?

OpenStudy (anonymous):

Distribute terms AC+AD+BC+BD+AB+BD+AC+CD+BC+CD+AB+AD=0 2AC+2AD+2BC+2BD+2AB+2CD=0 AC+AD+BC+BD+AB+CD=0 At this point, it depends on the values or restrictions on A, B, C, and D

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Gucchi: history help
7 hours ago 8 Replies 1 Medal
gelphielvr: (algebra 1) arithmetic sequences question in the replies
10 hours ago 6 Replies 1 Medal
gelphielvr: What animal never sleeps?
13 hours ago 2 Replies 1 Medal
gelphielvr: What 2 metals are liquid at room temperature?
11 hours ago 6 Replies 0 Medals
gelphielvr: What is the only planet not named after a god?
13 hours ago 4 Replies 0 Medals
Thayes1287: Please help me
15 hours ago 27 Replies 3 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!