1.

If \(\frac{a}{{1 - a}} + \frac{b}{{1 - b}} + \frac{c}{{1 - c}} = 1\). then the value of \(\frac{1}{{1 - a}} + \frac{1}{{1 - b}} + \frac{1}{{1 - c}} \) is

A. 0
B. 1
C. 2
D. 4
Answer» E.


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