perplexus.info :: Just Math : Entries of a matrix

Entries of a matrix (Posted on 2021-01-29)

Let be a natural number n≥2 and the n×n matrix whose entries at the i-th line and j-th column is min(i,j). Calculate:

a) its determinant
b) its inverse

No Solution Yet Submitted by Danish Ahmed Khan

Rating: 4.0000 (1 votes)

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Subject	Author	Date
Just part (a)	Paul	2021-02-01 14:32:50
Solution	Brian Smith	2021-01-30 21:32:06
Truly computer solution (spoiler)	Charlie	2021-01-29 18:04:44
re: Trivial solution for n=2	Charlie	2021-01-29 18:02:24
Trivial solution for n=2	Kenny M	2021-01-29 14:13:07

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