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... = l a b c l . . . . . .l d e f l . . . . . .l g h i l . . . then lAl =

**aei**+ bfg +cdh - ceg - bdi - afh Then the determinant in this question equals...2 Answers · Science & Mathematics · 30/05/2016

It's invertible if the determinant is zero, so find the determinant.

**aei**+ bfg + cdh - gec - hfa - idb = 0 0 + -cb + bc - -b² - -c² - 0 = 0 0...1 Answers · Science & Mathematics · 09/02/2014

..., you can use the Rule of Sarrus, which means |a b c| =

**aei**+ bfg + cdh - ceg - fha - bdi. |d e f| |g h i| Which is far ...2 Answers · Science & Mathematics · 08/02/2014

...point to the same circle are equal] v) Now consider triangles

**AEI**& AFI, EI = FI [From 3 above] AE = AF...3 Answers · Science & Mathematics · 28/02/2013

... of the alphabet there are 6 consonants and three vowels (

**AEI**) Therefore the last number to be a consonant has a probability...2 Answers · Science & Mathematics · 13/12/2012

Determinant expanding by cofactors on the first row =a|ei-fh|-b|di-fg|+c|dh-eg| =

**aei**-afh-bdi+bfg+cdh-ceg1 Answers · Science & Mathematics · 09/11/2012

The determinant is: 1.

**aei**+ bfg + cdh - ceg - bdi - afh And you know this is...dh - (c+i)eg - (b+h)di - (a+g)fh 4. det =**aei**+ bfg + cdh - ceg - bdi - afh + gei + hfg + idh - ieg - hdi - gfh 5...1 Answers · Science & Mathematics · 05/06/2012

...e ... f ] ... d ... e ... f [ g ... h ... i ] ... g ... h ... i Determinant = (

**aei**+ bfg + cdh) - (ceg + bdi + afh)2 Answers · Science & Mathematics · 16/04/2012

... after the equals sign. The determinant can be founded by (

**aei**+bfg+cdh)-(gec+hfa+idb). Here is the matrix clearly presented here...2 Answers · Science & Mathematics · 29/11/2011

adjustments need to be made for the fact that there are some letters occurring more than once. the permutation formula for such cases is n! /(r1!*r2!*.....) where there are r1 letters of one kind, r2 of another kind, etc A2 R1...

3 Answers · Science & Mathematics · 12/07/2011