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# How do you add e's Watch

1. We know that (ln^4) + (ln^1) = ln^4 because of the log rules,

however, how do you add e's - are there any rules?

e.g e^1 + e^3 = ?

We know that (ln^4) + (ln^1) = ln^4 because of the log rules,

however, how do you add e's - are there any rules?

e.g e^1 + e^3 = ?
2. what's 2^1 + 2^3?
what's 5^1 + 5^3?
what's pi^1 + pi^3?

e is just a number. factorise out e^1.
3. (Original post by Awakening)
We know that (ln^4) + (ln^1) = ln^4 because of the log rules,

however, how do you add e's - are there any rules?

e.g e^1 + e^3 = ?
THere are not general rule.
Generally you can add them only if the exponents are the
same, and then you have to add the coeffitients.
But there are some special sum
e.g or

and more ...

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Updated: December 19, 2010
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