1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Consider the following statements:
Statement I: If A is a non-singular matrix, then $A^{-1}$ exists.
Statement II: If A and B are symmetric matrices of same order, then $(AB - BA)$ is a skew symmetric matrix.
Choose the correct option.
A
Statement I is true and Statement II is false
B
Statement I is false and Statement II is false
C
Statement I is true and Statement II is true
D
Statement I is false and Statement II is true
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Match List-I with List-II
List-IList-II
a)A matrix which is not a square matrixi)Symmetric matrix
b)A square matrix $A = A'$ii)Null matrix
c)The diagonal elements of a diagonal matrix are sameiii)Rectangular matrix
d)A matrix which is both symmetric and skew symmetriciv)Scalar matrix
A
a - iii, b - i, c - ii, d – iv
B
a - iii, b - ii, c - iv, d – i
C
a - iii, b - i, c - iv, d – ii
D
a - iii, b - iv, c - i, d – ii
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The system of equations $x + 2y = 3$ and $2x + 3y = 3$ has
A
No solution
B
Unique solution
C
Infinite solutions
D
Only two solutions
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
If A and B are invertible square matrices of order n, then which of the following is not correct?
A
$\det(AB) = \det(A) \cdot \det(B)$
B
$\det(kA) = k^n \det(A)$
C
$\det(A + B) = \det(A) + \det(B)$
D
$\det(A^{-1}) = \dfrac{1}{\det(A)}$