- #1
vg19
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Hi,
There is an example of this question in the book but I cannot understand the part where it says 2AT = 2[2AT]T. Everything else I understand. (T means Transpose)
Suppose a square matrix A satisfies A = 2AT. Show that necessarily A=0.
A = 2AT = 2[2AT]T = 2[2(AT)T] = 4A
3A = 0
A=1/3(3A) = 1/3(0) = (0)
Thanks!
There is an example of this question in the book but I cannot understand the part where it says 2AT = 2[2AT]T. Everything else I understand. (T means Transpose)
Suppose a square matrix A satisfies A = 2AT. Show that necessarily A=0.
A = 2AT = 2[2AT]T = 2[2(AT)T] = 4A
3A = 0
A=1/3(3A) = 1/3(0) = (0)
Thanks!