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## Homework Statement

solve d/dx(kdT/dx)=0

where k is linear function of temperature

k=k(0)(1+BT)

## Homework Equations

this is the solution

T+BT^2/2=Ax+C

## The Attempt at a Solution

i opened the equation so that it becomes equal to

dk/dx*dT/dx+kd^2T/dx^2=0

i subtitute the value of K in the equation and tried to integrate it but i relize that i am not doing it in a correct way, can you giude me plz