Abdu Magdy

# 34 Questions

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### The derivation of the Binet-Cauchy Formula of Determinants from matrix multiplication

Feb 19 '18 at 5:44 Abdu Magdy 496

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### The proof of “Two rectangular matrices of the same dimension are equivalent $\iff$ they have the same rank”

Feb 18 '18 at 13:03 Abdu Magdy 496

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### Why is the ring of matrices of order $n$ is an algebra - Gantmacher?

Nov 15 '17 at 17:48 Abdu Magdy 496

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### Proving: $\lim _{x \rightarrow \infty} \ f(x)=\lim_{t \rightarrow 0^+} \ f(1/t)$

Sep 7 '17 at 13:02 A---B 3,292

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### a bottle of laundry detergent costs $3.60. Each bottle can be used to wash 23 loads of laundry 0 votes 1 answer 92 views ### If$X, Y, Z$are positive i.i.d. r.v.s, why is$E(\frac X{X+Y+Z})=E(\frac Y{X+Y+Z})=E(\frac Z{X+Y+Z})$? 0 votes 0 answers 46 views ### why is$P(Y=k|X=15, B)=P(Y=k|B)$in the following argument? Mar 31 '18 at 18:19 Abdu Magdy 496 0 votes 1 answer 110 views ### The characteristic values of the p-th compound matrix 0 votes 0 answers 29 views ### Is this a good imagination of$f\$ (4.1 Remark; Rduin)

Feb 6 '18 at 15:00 Abdu Magdy 496

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