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MIT 18.06 Linear Algebra, Spring 2010
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OpenStudy (anonymous):
the number of different nxn symmetric matrices with each element being either 0 or 1 is ______ a. 2^n b. 2^(n^2) c.2^((n^2+n)/2) d.2^((n^2-n)/2) @IIT study group
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OpenStudy (anonymous):
c. 2^(n/2*(n+1))
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