OK

i have a bit of a maths problem

I want to find, from 1 to 100 how four 4's can be used to make that number

e.g

1 = (4+4) / (4+4) or (4/4) / (4/4)
2 = (4/4) + (4/4)

and so on

I have worked out all, but the following:

35,
37,
39,
41,
43,
45,
51,
53,
55,
57,
71,
73,
75,
77,
83,
85,
87,
89,
91,
93,
99,

If anyone can help with the solution to any of these, please post

BTW:

Factorial, e.g. 4! = (24) can be used, so can Root(4) = (2), squares, cubes and powers can be used

e.g.

4^2, 4^3, 4^4, 4^x

etc

please help with the above numbers