Question

question on groups and symmetries

Answer 1

i just need help in how to show the closure for 2a. associativity and the identity is done i jsut dont know how to show the closure

Answer 2

@anonymoustwo44

Answer 3

@satellite73

Answer 4

write \(z\) as \(\alpha+\beta i\) where \(\beta>0\)

multiply out \(\displaystyle\frac{az+b}{cz+d}\) and show that the imaginary part is positive

Answer 5

@satellite73 could you help me out in this question pleasee

Answer 6

@TuringTest