Asignment 3 Mtk Iii - Andre Sianturi.docx

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  • Words: 183
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Nama : Andre Sianturi Nim : 4111730089 Jurusan : Teknik sipil

1. misalkan A = dan B= Jika A' menyatakan matriks tranpos dari A, maka persamaan A' = B dipenuhi bila x = . . . . . Pembahasan A=

maka A' =

A' = B, maka

=

Diperoleh : x + y = 1 dan x = -2y dengan demikian , x+y =1 <=> (-2y) + y = 1 <=> -y = 1 <=> y= -1 Untuk y =-1 , maka x = -2 (-1) =2

1 0

2. tentukan perkalian skalar A=

maka 2A=

2* 1 2* 0

2*2 2*-1

2* 3 2*5

2 -1

3 5

2 0

=

0 1 3 3. Tentuksn perkalian skalar A ( ) B( 2 −1 1 Maka K(A+B) = 2(A+B) = 2A+2B

2(A+B) = 2

2A+2B = 2

0 2

1 -1

+

0 1 2 -1

3 4 1 = 21

+ 2

4 -2

4 1

6 10

4 ) dengan k=2 1

3 3

=

3 1

dengan k=2

=

5 0

6 6

6 6

10 0

10 0

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