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## Homework Statement

A thin rod runs along the x axis from the origin to

x = l. Its linear charge density (C/m) is given by

λ = λ_0(x/l)^2 sin (x/lπ), where λ_0 is a constant.

Show that at the origin,

E(0)=〖-λ〗_0/(2π²€_0l)

## Homework Equations

## The Attempt at a Solution

Sorry I couldnt provide any start to this problem, kind of hit a mental block. A jump start would be much appreciated.