 
			 
			MCQOPTIONS
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				| 1. | What is the value of x if, \(\begin{vmatrix}x & 3 & 6 \\3 & 6 & x \\6 & x & 3 \end {vmatrix}\) = \(\begin{vmatrix}2 & x & 7 \\x & 7 & 2 \\7 & 2 & x \end {vmatrix}\) = \(\begin{vmatrix}4 & 5 & x \\5 & x & 4 \\x & 4 & 6 \end {vmatrix}\)? | 
| A. | 9 | 
| B. | -9 | 
| C. | 0 | 
| D. | Can’t be predicted | 
| Answer» C. | |