My HW question is:
is equal to...
Okay, so I started by expanding the first equation to this:
After combining terms, I got this:
Then, I multiplied the entire equation by :
From there, I've been unable to make any more forward progress. I'm pretty sure the first two terms can be rewritten like...
But I'm not sure about how the second two terms could be factorized. I can only assume that I've made an error in the expansion and simplification steps, but I've been unable the locate the error in my work (if one exists).
The first two terms are equal,
because this quadratic term is just a real number (or a 1 by 1 matrix if you like)
So you can always take transpose on it.
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