Can somebody show me how to work out the following:

Find x in each of the following:

a) Inx=3

b) log (10x)=3

c) In (exex3xexe)=x

2. Originally Posted by AJShaw
Can somebody show me how to work out the following:

Find x in each of the following:

a) Inx=3

b) log (10x)=3

c) In (exex3xexe)=x
change all three to exponential equations.

what do you mean by exex3xexe ???

3. "what do you mean by exex3xexe ???"

It is e times e times 3 times e times e.

Is it then In (e^4 times 3) = x ?

4. Originally Posted by AJShaw
"what do you mean by exex3xexe ???"

It is e times e times 3 times e times e.

Is it then In (e^4 times 3) = x ?
yes.

btw , it's ln , not In .

5. Is this the final answer then, or do I still need to find x? Slowly getting it, I think.

6. Originally Posted by AJShaw
Is this the final answer then, or do I still need to find x? Slowly getting it, I think.
$\ln(3e^4) = x$

$\ln(3) + \ln(e^4) = x$

$\ln(3) + 4 = x$