# Answer to Question #21500 in Algebra for lishan hailu

Question #21500

2) find the valeue of k if |K 3|

|K 2K|=0

|K 2K|=0

Expert's answer

Determinant of that matrix is det = K*2K - 3K= K^2-3K = (K-3) K

So

(K-3) K = 0whence K=3 or K=0.

So

(K-3) K = 0whence K=3 or K=0.

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