1.

If \(\left[ {\frac{{ - a}}{b}} \right] \times \frac{c}{d} = 1,\) then \(\frac{c}{d} = ?\)

A. Multiplicative identity of \(\left[ {\frac{{ - a}}{b}} \right]\)
B. \(\frac{b}{a}\)
C. Reciprocal of \(\left[ {\frac{{ - a}}{b}} \right]\)
D. \(\frac{{ - a}}{b}\)
Answer» D. \(\frac{{ - a}}{b}\)


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