Question
Find conditions on k that will make the matrix A invertible. To enter your answer, first select 'always', 'never', or whether k should be equal or not equal to specific values, then enter a value or a list of values separated by commas.
A = −2 3 0
2 k 0
−4 5 −3
A is invertible:
A = −2 3 0
2 k 0
−4 5 −3
A is invertible:
Answers
Damon
-2 +3 + 0
+2 +k + 0
-4 + 5 - 3
determinant must NOT be zero
6 k +18 NOT = 0
k NOT -3
+2 +k + 0
-4 + 5 - 3
determinant must NOT be zero
6 k +18 NOT = 0
k NOT -3