Determinants and matrix | (7)/(4) \ (9)/(3) | find \: determinant

asked Apr 19, 2022 73.9k views

5 votes

Determinants and matrix

$| (7)/(4) \ (9)/(3) | find \: determinant$

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1 vote

_________

$\ \:$

$\sf \: |a| = ad - bc$

$\sf\: |a| = (7 * 3) - (9 * 4)$

$\sf \: |a| = 21 - 36$

$\sf \: |a| = \bold{ \blue{ - 15}}$

Aakash Uniyal answered Apr 25, 2022

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