MCQOPTIONS
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| 1. |
If x, y, z are real and \[4{{x}^{2}}+9{{y}^{2}}+16{{z}^{2}}-6xy-12yz-8zx=0\], then x, y, z are in |
| A. | A.P |
| B. | G.P. |
| C. | H.P. |
| D. | none of these |
| Answer» D. none of these | |