Read through all the steps below carefully:
- We know from the product rule that .
- Integrate both sides with respect to to get .
- Consider .
- Define and .
- Then, and .
- Substitute the variables into the equation in step 2 to get .
- Subtract both sides of the equation in step 6 by to get .
In which of these steps did I first make a mistake by using flawed logic?
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