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oblig 9/ XXXXXXXXXXpdfoblig 9/10.2.6.pdfoblig 9/10.2.7.pdfoblig 9/10.2.8.pdfoblig 9/10.3.1.f.pdfoblig 9/ XXXXXXXXXXa.pdfoblig 9/10.3.9 b and c.pdfoblig 9/dm_oblig9.pdfDiskret matematikk   Oblig 9, høsten 2020Innleveringsfrist: fredag 23. oktober, kl. 23.59  Leveres på Canvas som én pdf-fil.   Følgende oppgaver fra læreboka skal løses:10.2.6.a 10.2.7.a og d  10.2.8.a   XXXXXXXXXXa og c10.3.1.f 10.3.9.b og c  XXXXXXXXXXaoblig 9/Task translations.txt10.2.6 a) calculate each matrix product and use10.2.7 a and d) calculate each matrix product possible and use10.2.8 a)Show for each case that AB = BA = I XXXXXXXXXXa and c)Solve each equation system Ax = b by using a ^-110.3.1 f)Calculate each determinante10.3.9 b and c)Decide if each matrix is singula XXXXXXXXXXa) for what t value is each matrix singular

Rajeswari · Accepted Answer

68887 assignment
Since each matrix is 2x2 all products are possible.
We multiply each row with each column and write as shown for AB.
Same method followed for others.
i) AB = =
ii) BC=
iii) 
iv) 
v) 
vi) 
vii) 
viii) 
*
a. AB =
	4
	-1
	4
	-1
	 0
	-1
	
	
BA =not possible
b. A^2 =
	11
	5
	-1
	-5
	3
	1
	-3
	-3
	7
c. C’C= (2 -1 3) (2 -1 3)’ = 14  and CC’ = 
	4
	-2
	6
	-2
	1
	-3
	6
	-3
	9
d. B is 3x2 and C’ = 1x3. Not possible also C’B is not possible
e.

oblig 9/ XXXXXXXXXXpdf oblig 9/10.2.6.pdf oblig 9/10.2.7.pdf oblig 9/10.2.8.pdf oblig 9/10.3.1.f.pdf oblig 9/ XXXXXXXXXXa.pdf oblig 9/10.3.9 b and c.pdf oblig 9/dm_oblig9.pdf Diskret matematikk Oblig...

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