Tentukan x jika matriks berikut matriks singular | ¼ ½ | | -2 2x+1 | Tolong dibantu
Matematika
risaris
Pertanyaan
Tentukan x jika matriks berikut matriks singular
| ¼ ½ |
| -2 2x+1 |
Tolong dibantu
| ¼ ½ |
| -2 2x+1 |
Tolong dibantu
1 Jawaban
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1. Jawaban dnnyz07
Matriks
Jika matriks singular , maka det = 0
(1/4)(2x + 1) - (1/2) (-2) = 0
(1/4)(2x + 1) + 1 = 0
(1/4)(2x + 1) = -1
----------------------- x 4
2x + 1 = -4
2x = -5
x = -5/2