For what value of x the matrix( 0 0 0) (-2 0 -4) (3 4 x+5) is skew symmetric matrix
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Answer:
x= -5
Step-by-step explanation:
A =[ 0 0 0 : -2 0 -4 : 3 4 x+5 ]
(A)^T =[0 -2 3 : 0 0 4 : 0 -4 x+5 ]
in skew symmetric matrix, A = -(A) ^T
A +(A) ^T = 0
[0 -2 3 : -2 0 0 : 3 0 2x+10 ] = 0
2x+10 = 0
2x = -10
x = -5
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