

MCQOPTIONS
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1. |
If $$x \ne 0,$$$$y \ne 0$$and $$z \ne 0$$and $$\frac{1}{{{x^2}}}$$+ $$\frac{1}{{{y^2}}}$$+ $$\frac{1}{{{z^2}}}$$= $$\frac{1}{{xy}}$$+ $$\frac{1}{{yz}}$$+ $$\frac{1}{{zx}}$$then the relation among x, y, z is? |
A. | + y + y = 0 |
B. | + y = z |
C. | $\frac{1}{x} + \frac{1}{y} + \frac{1}{z} = 0$$ |
D. | = y = z |
Answer» E. | |