NCERT Class 12 Maths
Chapter 4: Determinants
5 Questions Solved
NCERT Solutions for Class 12 Maths Chapter 4 Determinants — Exercise 4.3
Click any question below for its step-by-step NCERT textbook solution, concept hints, and worked explanation.
Question 1
Write the minors and cofactors of every element of (i) \(\left[\begin{matrix}2 & -4\\0 & 3\end{matrix}\right]\) and (ii)…
Question 2
Write the minors and cofactors of every element of (i) \(\left[\begin{matrix}1 & 0 & 0\\0 & 1 & 0\\0 & 0 & 1\end{matrix}\right]\) and…
Question 3
Evaluate \(\left[\begin{matrix}5 & 3 & 8\\2 & 0 & 1\\1 & 2 & 3\end{matrix}\right]\) by expanding along the second row.
Question 4
Evaluate \(\left[\begin{matrix}1 & x & y z\\1 & y & x z\\1 & z & x y\end{matrix}\right]\) by expanding along the third column.
Question 5
For A=[aᵢⱼ] of order 3, with Aᵢⱼ denoting cofactors, which expression equals det A?