Construct the diagram for the lattice of subgroups of the group of symmetries of a square(Example 8.1).

L11 - 12 Supplementary Material for Lecture 11: Limits at Inﬁnity We can use the shortcut for ﬁnding limits at inﬁnity for rational functions on the test: p(x) anx + ··· Let f(x)= = m be a rational function. q(x) bmx + ··· 1) If m>n mix→∞ f(x)=0. an 2) If n = mix→∞ f(x)= . bm 3) If m