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**1. The problem statement, all variables and given/known data**

If velocity = displacement (time)

or

.

x = dx/dt

were you put a dot above the x using newtons notation were you indicate a derivative with reference to time with a dot above the symbol

so I was like

speed of light = lambda (frequency)

or

lambda with a dot above it = d(lambda)d(frequency)

is this correct because this all the speed of light is? Sense frequency is simply 1/t?

c = lambda frequency

c = lambda/period

lambda (with a dot above it) = d(labmda)d(frequency)

I just never got newtons notation with the dot thing am I doing this correctly?

**2. Relevant equations**

**3. The attempt at a solution**

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