Matrix and determinant URT [Autosaved].pptx

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1. Matrix and determinant URT

2. c

3. The matrix to have inverse its determinant must not equal zero X^2-36 not equal 0 X must not equal 6 or -6 R-(6,-6) C

4. b

5. Do not forget I=A*A^-1

6. Singular matrix whose determinant=zero

7. B by trying choices

8. By substitute numbers A=1 b=2 c=3 D

9. By substitute numbers a=1 b=2 c=2 D

10. D