Soal-soal Matriks
2
SOAL-SOAL MATRIKS 1. Diketahui matriks A = [ 3 y 5−3 ] , B = [ x 5 −36 ] dan C = [ −3−1 y 9 ] . Jika A + B – C = [ 85 x −x−4 ] , maka nilai x + 2xy + y = …. A. 8 B. 12 C. 18 D. 20 E. 22 2. Diketahui persamaan matriks : [ 5−2 9−4 ][ 2−1 xx+y ] = [ 10 01 ] . Nilai x – y = …. A. 5 2 B. 15 2 C. 19 2 D. 22 2 E. 23 2 3. Diketahui persamaan matriks : [ x−54 −52 ][ 4−1 2 y−1 ] = [ 02 −16 5 ] . Perbandingan nilai x dan y adalah…. A. 3 : 1 B. 1 : 3 C. 2 : 1 D. 1 : 2 E. 1 : 1
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SOAL-SOAL
MATRIKS
1. Diketahui matriks A = [ 3 y5−3], B = [ x5−36] dan C = [−3−1y9 ]. Jika A + B – C = [ 85 x−x−4 ] , maka
nilai x + 2xy + y = ….A. 8B. 12C. 18D. 20E. 22
2. Diketahui persamaan matriks : [5−29−4] [ 2−1x x+ y ]=[1001] . Nilai x – y = ….
A.52
B.152
C.192
D.222
E.232
3. Diketahui persamaan matriks : [ x−54−52 ][ 4−12 y−1]=[ 02−165]. Perbandingan nilai x dan y
adalah….A. 3 : 1B. 1 : 3C. 2 : 1D. 1 : 2E. 1 : 1
4. Diketahui matriks A = [2ab4 ] , B = [a02b] dan C = [123114 ]. Jika AB =C, nilai dari a + b = ….
A. 2B. 4C. 7D. 9E. 16
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5. Nilai determinan [ 023−204
−3−40] adalah….
A. 3B. 2C. 1D. 0
E.12