AISSCE(Board Exam)

Full Paper Analysis & Solutions

Mathematics

1 UNDERSTAND MCQ_SINGLE 1 Mark(s) 2026 AISSCE(Board Exam)

#1488

For any square matrix A with real entries, if $A + A'$ is a symmetric matrix then :

(A)

(A - A') cannot be a skew symmetric matrix

(B)

(A - A') is a skew symmetric matrix

(C)

A is always a symmetric matrix

(D)

A is always a skew symmetric matrix

EASY

2 REMEMBER MCQ_SINGLE 1 Mark(s) 2026 AISSCE(Board Exam)

#1489

A matrix B = $[b_{ij}]_{m \times m}$ is said to be a diagonal matrix, if :

(A)

$b_{ij} = 0$, when $i = j$

(B)

$b_{ij} = 1$, when $i = j$

(C)

$b_{ij} = 1$, when $i \neq j$

(D)

$b_{ij} = 0$, when $i \neq j$

EASY