The value of x for which the matrix \( \left[ {\begin{array}{*{20}{c} – McqOptions

MCQOPTIONS

1.	The value of x for which the matrix \( \left[ {\begin{array}{*{20}{c}} {7-x }&3\\ 4&{3 -x}\end{array}} \right]\)is singular is
A.	1
B.	1 and 9
C.	9
D.	-1 and 9
Answer» C. 9

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