Printable 4x4 Cofactor Template
This one-page Letter PDF is for students working on 4x4 determinants by cofactor expansion. It shows the template for det(A) = + a₁₁ M₁₁ − a₁₂ M₁₂ + a₁₃ M₁₃ − a₁₄ M₁₄, with a field for det(A) = and a checkbox for Checked by row reduction?
Free printable · PDF
- 1 page
- US Letter — choose “Fit to page” for A4
- PDF, 119 KB
Free for personal, family and classroom use.
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Use it as a write-in worksheet while you expand along a row, record the determinant, and track each minor with the correct sign. Print one page per problem, fill in the matrix values and minors, then use the row-reduction check to confirm your result.
Good for
- Practice first-row cofactor expansion
- Record determinant answers by hand
- Check work against row reduction
Tip: Print on cardstock if you want a reusable scratch sheet under a clear sleeve.
3 files · PDF, DOCX, XLSX
Get every sheet: 4×4 Matrix Worksheets
This sheet plus 2 more in one download, with the editable Word and Excel files. 4×4 determinant and inverse practice with worked answers, a cofactor expansion template and a matrix operations reference sheet.
$5.00 USD, one-time 3 files · about $1.67 each
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Printable 4x4 Determinant Practice
Printable 4x4 Matrix Reference SheetFree 1-page 4x4 matrix reference sheet with key determinant rules, transposes, and scalar multiples in a clear property-and-rule format.