we have been asked to perform [tex] (6.496*10^{-6})\div (2.8*10^5) [/tex]
The given expression can be written as
[tex] \frac{(6.496*10^{-6})}{2.8*10^5} [/tex]
Now it can be re-written as below
[tex] =\frac {(6.496*10^{-6})}{2.8*10^5}=\frac{6.496}{2.8}*\frac{10^{-6}}{10^5}\\
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\text{Now using the exponent rule } \\
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\frac{a^m}{a^n}=a^{m-n}\\
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\text{we can re-write as below}\\
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\frac{6.496}{2.8}*\frac{10^{-6}}{10^5}= \frac{6.496}{2.8}*10^{-6-5}= \frac{6.496}{2.8}*10^{-11}\\
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\text{Now divide we get}\\
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=2.32*10^{-11} [/tex]
