- #1

hangainlover

- 83

- 0

But it leaves me with a negative number inside ln...

I can't think of any way to solve it without a calculator

help?

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- Thread starter hangainlover
- Start date

- #1

hangainlover

- 83

- 0

But it leaves me with a negative number inside ln...

I can't think of any way to solve it without a calculator

help?

- #2

arildno

Science Advisor

Homework Helper

Gold Member

Dearly Missed

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It can't be done exactly, in a finite number of steps.

But it leaves me with a negative number inside ln...

I can't think of any way to solve it without a calculator

help?

- #3

HallsofIvy

Science Advisor

Homework Helper

- 43,021

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The first thing you will have to do is

But it leaves me with a negative number inside ln...

I can't think of any way to solve it without a calculator

help?

- #4

disregardthat

Science Advisor

- 1,866

- 34

The first thing you will have to do isdefine[itex](-2)^x[/itex]. A negative number to most irrational powers is not defined.

In the complex range however they have a natural definition.

- #5

TylerH

- 729

- 0

- #6

cubzar

- 26

- 0

log2((-2)^x)-log2(x)=0

log2(((-2)^x)/x)=0

((-2)^x)/x=1

x=(-2)^x

2^x=(-2)^x=x

I don't know how to proceed.

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