Hello,

I'm having particular problems with re-arranging this formulae. (Headbang)

If someone could help me with it i'd be most thankful. Here goes:

X = y/z ln(1+r^3/1- r^3) Make r the subject.

Thanks.

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- May 13th 2009, 12:10 PMandywHelp with transposition
Hello,

I'm having particular problems with re-arranging this formulae. (Headbang)

If someone could help me with it i'd be most thankful. Here goes:

X = y/z ln(1+r^3/1- r^3) Make r the subject.

Thanks. - May 13th 2009, 01:36 PMSoroban
Hello, Andy!

This is*The Transposition Problem from Hell*

. . coming soon to a theater near you.

Quote:

Solve for

We have: .

Multiply by

Exponentiate: .

Multiply by

Expand: .

Rearrange terms: .

Factor: .

Then: .

Therefore: .

- May 14th 2009, 12:30 AMandyw
It's amazing how simple it looks once you have the answer!