Today I was found guilty because my exam answers were similar to those on the math website. I haven't even seen the evidence(Chegg's answers) they said. I would like some advice on the appeal.
Here is what happened.
There were 2 questions they suspected. In the first question, I put an absolute sign on my answer to eliminate the direction of water flow because the question provided the flow direction so that I didn't need to consider the direction. I think the official answer didn't have the absolute sign but Chegg's answer had. In the second question, I used an equation that is slightly different from my lecture note because I learned that from the internet and it is more accurate(the difference is due to different coursebooks). I think Chegg's answer used the same equation I did.
I have explained the reasons why I answered like this and provided the note I learned from the internet with the equation I used. The committee didn't challenge my statement at that time. It turns out they found me guilty.
What reason can I use to appeal this result and claim my innocence?