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Perform the Row Operation(s) on the Given Augmented Matrix R2=4r1+r2R _ { 2 } = - 4 r _ { 1 } + r _ { 2 }

Question 34

Multiple Choice

Perform the row operation(s) on the given augmented matrix.
-(a) R2=4r1+r2R _ { 2 } = - 4 r _ { 1 } + r _ { 2 }
(b) R3=4r1+r3R _ { 3 } = 4 r _ { 1 } + r _ { 3 }
(c) R3=3r2+r3R _ { 3 } = 3 r _ { 2 } + r _ { 3 }
[135245254546]\left[ \begin{array} { r r r | r } 1 & - 3 & - 5 & 2 \\4 & - 5 & 2 & 5 \\- 4 & - 5 & 4 & 6\end{array} \right]


A) [135207223028905]\left[ \begin{array} { r r r | r } 1 & - 3 & - 5 & 2 \\ 0 & 7 & 22 & - 3 \\ 0 & 28 & 90 & 5 \end{array} \right]

B) [13520722304505]\left[ \begin{array} { r r r | r } 1 & - 3 & - 5 & 2 \\ 0 & 7 & 22 & - 3 \\ 0 & 4 & 50 & 5 \end{array} \right]

C) [135207223068705]\left[ \begin{array} { r r r | r } 1 & - 3 & - 5 & 2 \\ 0 & 7 & 22 & - 3 \\ 0 & - 68 & - 70 & 5 \end{array} \right]

D) [135201722300611]\left[ \begin{array} { r r r | r } 1 & - 3 & - 5 & 2 \\ 0 & 17 & 22 & - 3 \\ 0 & 0 & 6 & 11 \end{array} \right]

Correct Answer:

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