2 Attachment(s)

Determining Formula for a graph

Can anyone please show me how to determine the formula of the plot dots in the graph, the dots I think is divided into three parts, I put a line between the parts to avoid confusion....

A looks something like a x^3 graph

B looks like a sine curve

C looks weird.....

Can anyone please help me out?

Thanks in advance, the files are attached

1 Attachment(s)

Solving polynomial simultaneous equations

I have a very many (nine to be precise) simultaneous equations, I want to solve them to get a,b,c,d,e,f,g,h and i. I tried everything from websites to trying myself, but couldn't :-(

it is attached if you want to see it, please if anyone has a method of finding these values let me know....

Thanks in advance