Let G be a cyclic group generated by an element a.
a) Prove that if an = e for some n ∈ Z, then G is
finite.
b) Prove that if G is an infinite cyclic group then it contains
no nontrivial finite subgroups. (Hint: use part (a))
Given the set of vertices, determine whether the
quadrilateral is a rectangle, rhombus, or square:**Find the distance and slope or each line
segment.A (−2, 7), B (7,2), C (−2,−3), D (−11,2)This quadrilateral is a… A (Rhombus) B (Rectangle) C
(square)
Consider a rhombus that is not square (i.e., the four sides all have the same length, but the angles between sides is not 90°). Describe all the symmetries of the rhombus. Write down the Cayley table for the group of symmetries,
a. Let A be a square matrix with integer entries.
Prove that if lambda is a rational eigenvalue of A then in fact
lambda is an integer.
b. Prove that the characteristic polynomial of the
companion matrix of a monic polynomial f(t) equals f(t).