DSSSB PGT 2018 Female
October 24, 2024
Logic-Gates
October 24, 2024
DSSSB PGT 2018 Female
October 24, 2024
Logic-Gates
October 24, 2024

ISRO-2017 May

Question 1
If A is a skew-symmetric matrix, then AT
A
diagonal matrix
B
A
C
-A
D
0
Question 1 Explanation: 
→ In mathematics, particularly in linear algebra, a skew-symmetric (or antisymmetric or antimetric) matrix is a square matrix whose transpose equals its negative, that is, it satisfies the condition.
→ If A is skew symmetric matrix then AT = -A
→ In terms of the entries of the matrix, if aij denotes the entry in the ith row and jth column, then the skew-symmetric condition is equivalent to
→ If A is skew symmetric matrix then aji=-aij
Correct Answer: C
Question 1 Explanation: 
→ In mathematics, particularly in linear algebra, a skew-symmetric (or antisymmetric or antimetric) matrix is a square matrix whose transpose equals its negative, that is, it satisfies the condition.
→ If A is skew symmetric matrix then AT = -A
→ In terms of the entries of the matrix, if aij denotes the entry in the ith row and jth column, then the skew-symmetric condition is equivalent to
→ If A is skew symmetric matrix then aji=-aij

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