SOLUTION: How would you expand the logarithmic expression 3ln 7=5ln y
Thanks in advance!
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Question 481919: How would you expand the logarithmic expression 3ln 7=5ln y
Thanks in advance!
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How would you expand the logarithmic expression 3ln 7=5ln y
----
It is already expanded.
Maybe you want to reduce it to one log expression or solve it for "y":
If so:
ln7^3 - lny^5 = 0
-----
ln[343/y^5] = 0
---
Take the anti-log of both sides to get:
343/y^5 = 10
y^5 = 34.3
y = 2.0280
==============
Cheers,
Stan H.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
I have no idea what you mean by "expand" in this context. I can solve the equation for 
, but I'm not sure that is what you want.
Use:
\ =\ n\log_b(x))
to write:
\ =\ \ln\left(y^5\right))
Then use:
\ =\ \log_b\left(x_2\right)\ \Leftrightarrow\ x_1\ =\ x_2)
to write:
Then
John
My calculator said it, I believe it, that settles it
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