Question

4.4-5. Invert the matrix D shown below: I 5 0 107 D = -10 150 L-5 10 200
4.4-7. Find the inverse of the following matrix : 510 6 87 F = 5 -9 -12 Is 7 -4.
4.7-1. Invert each of the following matrices by operations on the rows: [ - ] - [ 2 4. f.11 aw t rinae har onerations on the
L0.209 0.641.] L-366 431] 4.7-5. Invert the matrix E shown below by using row operations, and then check the result by recalc

i would like to have know the solution for this 4 seprate queetions. please i need anserd for eqch one.
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Answer #1

The solutions are given below in the pictures-С lе 7-о го / L-г 10 24 — Augnent Matrix, | | Гоо / 1 o o ) | - | - o o o |-- Гоо 1 | row operation 5 оо Applying Applying 43) 에 키 메 에 - To | - Jo | 01- Loo | | 크 이보에성 기성 에어 에의 면 , 옳 이보이성 거의 성에님 거성O 5 6 8 -9 -12 7 -4 Augment Matein. J7 - 72 R2 R₂ -URI & B-5R, | 2 | 0 | 0 42 46 LO 4 -8 R2 si & WJR l te oon + LO Y 8 Ri-R 01 | B → R R Tio o | 。 10 0-4 | o 2 0 / R 11월 18. o 。 | 。 | | | 금 | 크 40 -19 Hi Thi o els4,7-1 Augment Matrin (5-8 lio7 De I Ś 07 R=R 1-4 7 0 1 ] [2 [ ] *** ] - 3 [ o I 8 la hlin +J&4.71 Azi 1 12 18 / Augment metsies Augment Matrix [ 4 12 5 18 1 o7 0 1 applying row operations, 9 ron Lo 3 1 3 Rz> h-3 R [ 13467-5 2 [ E = 1 3 1 -Y 7 * 21 Augment Matria, 5 2 1 3 1 4 l l oor 2 0 1 0 5 7 da Applying Row operations, Ti Ź -21 £ 007 7 3o oㅓ67 임 o 금 나 4 ) | K -C loo H 17 T 이끄 ㅜ Lo o 2 13 | 3 | R = () 3 (329 m - Co 011 1 - G 그 To | o | Loo |2 Тт т - 우 위어 귀에 | R

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