| * 20 r 2&4 - 5 & - 1 |

| * 20 r 2&4 - 5 & - 1 | = 2( - 1) - ( - 5)(4) = - 2 + 20 = 18

class 12 maths determinants

$\left| {\begin{array}{rrrrrrrrrrrrrrrrrrrr}2&4\\{ - 5}&{ - 1}\end{array}} \right|$

VAVidaara Admin Asked 9d ago 0 views 0 answers

📘 Determinants NCERT,Ex.4.1,Q.1,Page.108 SA

$\left| {\begin{array}{rrrrrrrrrrrrrrrrrrrr}2&4\\{ - 5}&{ - 1}\end{array}} \right|$

VVidaara Team ✓ Verified solution NCERT & Exemplar

$\left| {\begin{array}{rrrrrrrrrrrrrrrrrrrr}2&4\\{ - 5}&{ - 1}\end{array}} \right| = 2( - 1) - ( - 5)(4) = - 2 + 20 = 18$

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