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OpenStudy (jkbo):
Please help Which determinant has a value of 2? a.det [-7 9] [1 1] b.det [7 9] [1 1] c.det [7 -9] [1 1] d.det [-7 -9] [1 1]
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OpenStudy (anonymous):
\[-7\times 1-1\times 9=-16\] so not the first one
OpenStudy (jkbo):
Its D.
OpenStudy (jkbo):
thank you very
OpenStudy (anonymous):
yw
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