Whic of the following is NOT true?
1
y' = \(\frac1h[\triangledown y+\frac12\triangledown^2y+\frac13\triangledown^3y+...]\)
2
y'' = \(\frac1{h^2}[\triangledown^2 y+\triangledown^3y+\frac{1}{12}\triangledown^4y+...]\)
3
e-hD = 1- \(\triangledown\)
4
E = ehD