1 01 4. Let A 11. (a) Find ATA, (b) find det (AAT). [10 points 1...

Question

Question

Answer 1

Answer #1

Initially I have given all the formulae to calculate determinants.

et (A) a (exi- 9 h i

ㄑㄧ 0 0

Solution of Problem No. 4

10 -1 2 Σ一寸ㄧㄏㄧㄧ一2x 2-(+) X(-1) det (ATA ー3 .. det (ATA) 3 o O 1 I ztD 1 2 1 det (AA) o I 1(2-1)-1(1-0)+o(-i-o) ˋ 1 (1)--1(1)to

Solution of Problem No. 5

12 3 o -1 o o 3 020 7 0-2-0-7 26てー 2 6 I 3-2 1 = | 6 (ox7-D13)-6(017-6):1(0-0) 4210 13-12 422 36- 2(42) +3 (28) 36 36

Solution of Problem No. 6

61 doot know which method you are Seying Here but I hoye qiven the Solution using Pormula Al = Adi A det(A) For A2 2 (3x2-1시)

Answer 2

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