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OpenStudy (anonymous):
|x+1 x+2 x+a | |x+2 x+3 x+a+1| = 0 |x+3 x+4 x+a+2| **To prove determinant of that is equal to '0' **
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OpenStudy (anonymous):
ANYONE O.O
OpenStudy (mathmale):
Familiar with determinants? cofactors? evaluating determinants? What do YOU think might be a good way to start? Once I know that, I could be more helpful.
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