If \({{\rm{q}}^{ - {\rm{a}}}} = \frac{1}{{\rm{r}}}\) and \({{\rm{r}}^{ - {\rm{b}}}} = \frac{1}{{\rm{s}}}\) and \({{\rm{S}}^{ - {\rm{c}}}} = \frac{1}{{\rm{q}}}\), the value of abc is _______

If \({{\rm{q}}^{ - {\rm{a}}}} = \frac{1}{{\rm{r}}}\) and \({{\rm{r}}^

1.	If \({{\rm{q}}^{ - {\rm{a}}}} = \frac{1}{{\rm{r}}}\) and \({{\rm{r}}^{ - {\rm{b}}}} = \frac{1}{{\rm{s}}}\) and \({{\rm{S}}^{ - {\rm{c}}}} = \frac{1}{{\rm{q}}}\), the value of abc is _______
A.	(rqs)-1
B.	0
C.	1
D.	r+q+s+
Answer» D. r+q+s+

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If \({{\rm{q}}^{ - {\rm{a}}}} = \frac{1}{{\rm{r}}}\) and \({{\rm{r}}^{ - {\rm{b}}}} = \frac{1}{{\rm{s}}}\) and \({{\rm{S}}^{ - {\rm{c}}}} = \frac{1}{{\rm{q}}}\), the value of abc is _______

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