- #1

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## Homework Statement

See image

## Homework Equations

M = log(I_i / I_o)

## The Attempt at a Solution

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- Thread starter Macleef
- Start date

- #1

- 30

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See image

M = log(I_i / I_o)

See image

- #2

- 27

- 3

No, no... you are making it far too complicated.

What is [tex] I_X [/tex] in terms of [tex] I_E [/tex] ? In other words, what number do you have to multiply [tex] I_E [/tex] by to get [tex] I_X [/tex]?

Then get rid of [tex] I_X [/tex] in your equation.

Finally think about what multiplication inside of a log function maps to on the outside. I'll give you a clue on the last one and it is +.

What is [tex] I_X [/tex] in terms of [tex] I_E [/tex] ? In other words, what number do you have to multiply [tex] I_E [/tex] by to get [tex] I_X [/tex]?

Then get rid of [tex] I_X [/tex] in your equation.

Finally think about what multiplication inside of a log function maps to on the outside. I'll give you a clue on the last one and it is +.

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