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A i actually don't know where to start. So far, by using the triangle inequality, i've got: Further, the fact that ax = a a x = a does not imply that x x is an identity matrix.
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Why does a−−√ b√ = ab−−√ a b = a b only hold when at least one of a a and b b is a positive number? Prove (at)−1 (a t) 1 = (a−1)t (a 1) t for any invertible matrix a. It is useful and clear
I do not think i can just apply index laws.
The question mentions prove the following inequalities for all numbers a,b and the triangle inequality is |a+b|≤|a|+|b|, am i correct? This question shows research effort; This question shows research effort; Well, i need to prove that if a a is a n × n n × n matrix and it is singular, then det a = 0 det a = 0, in order to show binet's theorem det(ab) = det(a) ⋅ det(b) det (a b) = det (a) det (b) in the.
It is useful and clear
