Nilai-nilai x agar matriks (5x 5,4 x) tidak memiliki invers adalah...
kekkaiisshi
Supaya matriks persegi tidak memiliki invers ![misal matriks M =\left[\begin{array}{ccc}5x&5\\4&x\end{array}\right] \\ det (M) = 5x^{2} - 20 \\ 5x^{2} - 20 = 0 \\ 5(x^{2} - 4) = 0 \\ x^{2} - 4 = 0 \\ x^{2} = 4 \\ x = \frac{+}{} \sqrt{4} = \frac{+}{} 2](https://tex.z-dn.net/?f=+misal+matriks+M+%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5x%265%5C%5C4%26x%5Cend%7Barray%7D%5Cright%5D++%5C%5C+det+%28M%29+%3D+5x%5E%7B2%7D+-+20+%5C%5C+5x%5E%7B2%7D+-+20+%3D+0+%5C%5C++5%28x%5E%7B2%7D+-+4%29+%3D+0+%5C%5C+x%5E%7B2%7D+-+4+%3D+0+%5C%5C+x%5E%7B2%7D+%3D+4+%5C%5C+x+%3D++%5Cfrac%7B%2B%7D%7B%7D++%5Csqrt%7B4%7D+%3D++%5Cfrac%7B%2B%7D%7B%7D+2 "misal matriks M =\left[\begin{array}{ccc}5x&5\\4&x\end{array}\right] \\ det (M) = 5x^{2} - 20 \\ 5x^{2} - 20 = 0 \\ 5(x^{2} - 4) = 0 \\ x^{2} - 4 = 0 \\ x^{2} = 4 \\ x = \frac{+}{} \sqrt{4} = \frac{+}{} 2")
nilai determinan = 0
16 votes
Thanks 56
alghifarifulkip4w62c
itu 5nya kok bisa ilang?
anggapriyana10
Digondol kucing