?
$${\text{If 1}}{{\text{0}}^x}{\text{ = }}\frac{1}{2}{\text{ then 1}}{{\text{0}}^{ - 8x}} = ?$$
Answer & Solution
Correct Answer:
Option
D
$$\eqalign{
& {\text{1}}{{\text{0}}^{ - 8x}} \cr
& = {\left[ {{{10}^x}} \right]^{ - 8}} \cr
& = {\left[ {\frac{1}{2}} \right]^{ - 8}} \cr
& = {2^8} \cr
& = 256 \cr} $$
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