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Name the octants in which the following points lie : $(1,2,3),(4,-2,3),(4,-2,-5),(4,2,-5)$, $(-4,2,-5),(-4,2,5),(-3,-1,6),(2,-4,-7)$
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The octant in which the given point lie:
(i) (1, 2, 3), XOYZ
(ii) $(4,-2,3), \mathrm{XOY}^{\prime} \mathrm{Z}$
(iii) $(4,-2,-5), X^{\prime} Y^{\prime} Z^{\prime}$
(iv) $(4,2,-5), \mathrm{XOYZ}{ }^{\prime}$
(v) $(-4,2,-5), X^{\prime} O Y Z^{\prime}$
(vi) $(-4,2,5), \mathrm{X}^{\prime} \mathrm{OYZ}$
(vii) $(-3,-1,6), X^{\prime} \mathrm{OY}^{\prime} \mathrm{Z}$
(viii) $(2,-4,-7), \mathrm{XOY}^{\prime} \mathrm{Z}^{\prime}$
(i) (1, 2, 3), XOYZ
(ii) $(4,-2,3), \mathrm{XOY}^{\prime} \mathrm{Z}$
(iii) $(4,-2,-5), X^{\prime} Y^{\prime} Z^{\prime}$
(iv) $(4,2,-5), \mathrm{XOYZ}{ }^{\prime}$
(v) $(-4,2,-5), X^{\prime} O Y Z^{\prime}$
(vi) $(-4,2,5), \mathrm{X}^{\prime} \mathrm{OYZ}$
(vii) $(-3,-1,6), X^{\prime} \mathrm{OY}^{\prime} \mathrm{Z}$
(viii) $(2,-4,-7), \mathrm{XOY}^{\prime} \mathrm{Z}^{\prime}$
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