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阅读材料:符号“”称为二阶行列式,规定它的运算法则为:=ad-bc,例如的计算方法为=2×...
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阅读材料:符号“
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACIAAAAoCAYAAACb3CikAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
”称为二阶行列式,规定它的运算法则为:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACIAAAAoCAYAAACb3CikAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
=ad-bc,例如
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAoCAYAAAALz1FrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFMSURBVFhH7VeJDcMgDGQydmIdlmEURnFtCOFJ
Up8jVZWiIFVRVZvjzia+Oucc/Wq1vfn5SJAUSJiVj4+UzTpmit5RSDXxKFeO5NuvlCgI0P4dQ8vR
l40vQXJK08lLgoUNHzLEpDBZDyvSwUxYpiDyanItICl02ppYKXiKpYAWkKk+CgQz7oRhEAkMXHps
CeO9I1tn8tMztcvL2KljIHMUwEQ6aqr1JAUCqoCc08Zlq0cAmCBntcQ8/QVp0QKIfeUCROohr1yv
XH/wXc1xmGyRTNI2sIZZcdHCbIUsDqW0wZhTrdS17yrx47wGGymLR+lrNCAnTOrAqfPaOqw2kMVG
fb3xdUo2m4Mx2ierXpO+YWkA2NxteVsDiFORBby77jQBT/nB3mIgViZb8zQFVJB7/ktzK+OFGnpd
Lfv4n2bJU5momwMBLwgg0nHGfwBwithdHFDs7wAAAABJRU5ErkJggg==
)
的计算方法为
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAoCAYAAAALz1FrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFMSURBVFhH7VeJDcMgDGQydmIdlmEURnFtCOFJ
Up8jVZWiIFVRVZvjzia+Oucc/Wq1vfn5SJAUSJiVj4+UzTpmit5RSDXxKFeO5NuvlCgI0P4dQ8vR
l40vQXJK08lLgoUNHzLEpDBZDyvSwUxYpiDyanItICl02ppYKXiKpYAWkKk+CgQz7oRhEAkMXHps
CeO9I1tn8tMztcvL2KljIHMUwEQ6aqr1JAUCqoCc08Zlq0cAmCBntcQ8/QVp0QKIfeUCROohr1yv
XH/wXc1xmGyRTNI2sIZZcdHCbIUsDqW0wZhTrdS17yrx47wGGymLR+lrNCAnTOrAqfPaOqw2kMVG
fb3xdUo2m4Mx2ierXpO+YWkA2NxteVsDiFORBby77jQBT/nB3mIgViZb8zQFVJB7/ktzK+OFGnpd
Lfv4n2bJU5momwMBLwgg0nHGfwBwithdHFDs7wAAAABJRU5ErkJggg==
)
=2×3-4×5=-14.
请根据阅读材料完成:
(1)化简二阶行列式
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD8AAABCCAYAAADg4w7AAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
;
(2)若
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB0AAAAoCAYAAAACJPERAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFXSURBVFhH7ZcBDoMgDEU5GXfiOlyGo3CUjoIg
CDg+TmMyli3LFsrr/61YhRCCnnpFlvt+AdQoQZyIUObnBpwqtVrSJaZRIXH+SE12S/8EaklLRdM6
rSaZMjakMtf60CIId9gak5RxNLsW1Xahwdotw4M9eAougq3elHegbC3XItobfl+pLzdmjG9DG9bm
QbDSw35NaN21rFSSju0HUeuGbEAbXZvVA+L5UtbJ1tCjtf5am7t0KsfcXlzXpr3pNLpwIhV7xANi
S/5dZy9aO2T9Uoq4Ba9d9sKWIQHLXsQteO2yF7asG8C3SlHeU++1N829T0K9fJ4oAeh+I3aTw/TI
MgwNI6dMk1iYf+dG0EEoK9yBfj6/MA2OQLnbsocdX5bWf8P9PQDlCa5WeVQ+TBxrpNLa+CzD3WfJ
vSdeA0q9lcXImINBZrHXt2cZcG90+b0nUieb/4N+AJIUSsV+9e9XAAAAAElFTkSuQmCC
)
=1003,试求代数式4a-2b+2007的值.
相关试题
-
阅读材料:符号“
”称为二阶行列式,规定它的运算法则为:
=ad-bc,例如
的计算方法为
=2×3-4×5=-14.
请根据阅读材料完成:
(1)化简二阶行列式
;
(2)若
=1003,试求代数式4a-2b+2007的值.
-
阅读材料:符号“
”称为二阶行列式,规定它的运算法则为:
=ad-bc,例如
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=2×3-4×5=-14.
请根据阅读材料完成:
(1)化简二阶行列式
;
(2)若
=1003,试求代数式4a-2b+2007的值.
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阅读材料:符号“
”称为二阶行列式,规定它的运算法则为:
=ad-bc,例如
的计算方法为
=2×3-4×5=-14.
请根据阅读材料完成:
(1)化简二阶行列式
;
(2)若
=1003,试求代数式4a-2b+2007的值.
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=2×3-4×5=-14.
请根据阅读材料完成:
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