 
			 
			MCQOPTIONS
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				| 1. | Which of the following elementary operations has been applied to the matrix A=\(\begin{bmatrix}8&5\\2&8\end{bmatrix}\) such that the new matrix is \(\begin{bmatrix}12&21\\2&8\end{bmatrix}\)? | 
| A. | R1→R1-2R2 | 
| B. | R1→2R1+R2 | 
| C. | R1→R2+R1 | 
| D. | R1→R1+2R2 | 
| Answer» E. | |