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

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

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

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