1
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
If $$R = \left[ {\matrix{ 1 & 0 & { - 1} \cr 2 & 1 & { - 1} \cr 2 & 3 & 2 \cr } } \right]$$ then the top row of $${R^{ - 1}}$$ is
A
$$\left[ {\matrix{ 5 & 6 & 4 \cr } } \right]$$
B
$$\left[ {\matrix{ 5 & -3 & 1 \cr } } \right]$$
C
$$\left[ {\matrix{ 2 & 0 & -1 \cr } } \right]$$
D
$$\left[ {\matrix{ 2 & -1 & 0 \cr } } \right]$$
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