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1. |
If \(\left| {\begin{array}{*{20}{c}} {a - b - c}&{2a}&{2a}\\ {2b}&{b - c - a}&{2b}\\ {2c}&{2c}&{c - a - b} \end{array}} \right| = \left( {a + b + c} \right){(x + a + b + c)^2}\), x ≠ 0 and a + b + c ≠ 0, then ‘x’ is equal to: |
A. | abc |
B. | -(a + b + c) |
C. | 2(a + b + c) |
D. | -2(a + b + c) |
Answer» E. | |