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1. |
If x2 = y + z, y2 = z + x and z2 = x + y, x, y, z ≠ 0, then the value of \(\sqrt {\frac{1}{{1\; + \;x}}\; + \;\frac{1}{{1\; + \;y}}\; + \;\frac{1}{{1\; + \;z}}}\) is |
A. | 2 |
B. | 0 |
C. | -2 |
D. | 1 |
Answer» E. | |