Who is asking: Student
how would you solve the following problem? If z to the power of -4= 1/z4 then how would you solve 1/t-2?
I am not sure that I have this correct but I think you are asking
If z -4 = 1/z4 then what is 1/t -2?
Assuming that this is the question then t -2 = 1/t2 and hence