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Harriche
25.12.2019 •
Mathematics
What is measure of angle r? enter your answer as a decimal, round only your final answer to the nearest hundredth.
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Ответ:
(b) |B^5| = |B|^5 = 2^5 = 32.
(c) Since A is 4 x 4,
|2A| = 2^4 * |A| = 16 * -1 = -16.
(d) Since determinants are invariant under transposition,
|A^t A| = |A^t| |A| = |A| |A| = (-1)(-1) = 1.
(e) |B^(-1) AB| = |B^(-1)| |A| |B|
= (1/|B|) |A| |B|
= |A|
= -1.
I hope this helps!