1.

Simplify: \(\left( {\frac{{1 - 1}}{{10}}} \right)\left( {\frac{{1 - 1}}{{11}}} \right)\left( {\frac{{1 - 1}}{{12}}} \right) - \left( {\frac{{1 - 1}}{{99}}} \right)\left( {\frac{{1 - 1}}{{100}}} \right) = ?\)

A. \(\frac{9}{{100}}\)
B. \(\frac{9999}{{10000}}\)
C. \(\frac{1}{{10000}}\)
D. 0
Answer» E.


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