Hello guys! I need your immense help! Please help:
1) What is the 11th root of 2 in Z19?
2) How many elements are there in Z*35? (35 is wrong answer)
3) What is the discrete log of 5 base 2 in Z13? (i.e. what is Dlog2(5))
4) Solve the equation x^2 + 4x + 1=0 in Z23