I'm trying to do $\displaystyle \frac{e^{-3.15x10^{18}}}{e^{-4.9x10^{17}}}$ Can I minus the powers so I get $\displaystyle e^{-2.66x10^{18}}$
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Originally Posted by Mukilab I'm trying to do $\displaystyle \frac{e^{-3.15x10^{18}}}{e^{-4.9x10^{17}}}$ Can I minus the powers so I get $\displaystyle e^{-2.66x10^{18}}$ Yes you can. But what is $\displaystyle -3.15\cdot 10^{18}+4.9\cdot 10^{17}~?$
Yes, you can do this.
Originally Posted by Plato Yes you can. But what is $\displaystyle -3.15\cdot 10^{18}+4.9\cdot 10^{17}~?$ It is $\displaystyle (-31.5+ 4.9)\cdot 10^{17}= -26.6 \cdot 10^{17}= -2.66 \cdot 10^{18}$ just as Mukilab had! (However, Mukilab, "minus" is NOT a verb! Subtract the two.)
Last edited by HallsofIvy; Nov 2nd 2013 at 11:51 AM.
Originally Posted by HallsofIvy It is $\displaystyle (-31.5+ 4.9)\cdot 10^{17}= -26.6 \cdot 10^{17}= -2.66 \cdot 10^{18}$ just as Mukilab had! (However, Mukilab, "minus" is NOT a verb! Subtract the two.) Haha thanks, I'll keep that in mind.
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