# Thread: To find the power?

1. ## To find the power?

Hey, my first post here...

I have a small problem. I have managed to get : 0.91 = 0.131577922^alpha in a question. I am looking for find the value of alpha... anyone able to help?

If so, any chacen you can show how i can find such a power?

I tried using simple lettter, x = y^n, and using logs, still not able to get answers... Maybe i just went wrong somwhwere...

2. Hi

If you know logs you can use this

$log(x^\alpha) = \alpha\, log(x)$

$0.131577922^\alpha = 0.91$

$log(0.131577922^\alpha) = log(0.91)$

$\alpha\, log(0.131577922) = log(0.91)$

$\alpha = \frac{log(0.91)}{log(0.131577922)}$

$\alpha = 0.0465$

3. Thank you very much, that helps alot