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OpenStudy (smarty):
For what value of x does no inverse exist for matrix A?
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OpenStudy (smarty):
|dw:1340230225782:dw|
OpenStudy (anonymous):
-4
OpenStudy (anonymous):
Well you can't have inverse if det = 0 det A=2*2-X*(-1)=4+X So... x=-4
OpenStudy (smarty):
Thanks, once again~!
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