Jawabanmu

2014-02-03T13:51:00+07:00
. Fk= FbxLb:Lk . Fb=FkxLk:Lb . Lk=FbxLb:LFk
Kalau Lb nya apa?
Lb = LkxFk:Fb
Makasih ya :)
sip . semangat ya dek
Fb*Lb=Fk*Lk