Page 119 - 1300 Math Formulas
P. 119
CHAPTER 5. MATRICES AND DETERMINANTS
518. `çÑ~Åíçê=
( ` = − ) N á à + j =
áà áà
=
519. i~éä~ÅÉ=bñé~åëáçå=çÑ=å-íÜ=lêÇÉê=aÉíÉêãáå~åí=
i~éä~ÅÉ=Éñé~åëáçå=Äó=ÉäÉãÉåíë=çÑ=íÜÉ=á-íÜ=êçï=
å
ÇÉí ^ = ∑ ~ áà ` I=á = I O I N K å I K=
áà
à =N
i~éä~ÅÉ=Éñé~åëáçå=Äó=ÉäÉãÉåíë=çÑ=íÜÉ=à-íÜ=Åçäìãå=
å
ÇÉí ^ = ∑ ~ áà ` I= à = I O I N K å I K==
áà
á =N
=
=
=
5.2 Properties of Determinants
=
520. qÜÉ==î~äìÉ==çÑ=~=ÇÉíÉêãáå~åí=êÉã~áåë==ìåÅÜ~åÖÉÇ=áÑ=êçïë=~êÉ=
ÅÜ~åÖÉÇ=íç=Åçäìãåë=~åÇ=Åçäìãåë=íç=êçïëK=
~ ~ ~ Ä
= N O = N N ==
Ä N Ä O ~ O Ä O
=
521. fÑ=íïç==êçïë==Eçê=íïç=ÅçäìãåëF=~êÉ==áåíÉêÅÜ~åÖÉÇI=íÜÉ=ëáÖå=çÑ=
íÜÉ=ÇÉíÉêãáå~åí=áë=ÅÜ~åÖÉÇK=
~ Ä ~ Ä
N N = − O O =
~ Ä ~ Ä
O O N N
=
522. fÑ=íïç=êçïë==Eçê=íïç=ÅçäìãåëF=~êÉ==áÇÉåíáÅ~äI=íÜÉ=î~äìÉ=çÑ=íÜÉ=
ÇÉíÉêãáå~åí=áë=òÉêçK=
~ N ~ N = M=
~ O ~ O
=
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