Conjugacy - Let the dihedral group D_n be given by elements "a" of order "n" and "b" of order 2, subject to the identity b*a=a^-1*b. Prove that a^m is conjugate to only a^-m, and that a^m8b is conjugate to a^(m+2 ...
Complex Conjugates - What is the complex conjugate of 78.93iw^3+30.48iw^2+iw? How did you find it?