Q28MCQMarks unknownLet ({p,q},∗)\left(\{ p,q \},*\right)({p,q},∗) be a semigroup where p∗p=qp*p=qp∗p=q. Show that:(A)p∗q=q∗pp*q=q*pp∗q=q∗p and(B)q∗q=qq*q=qq∗q=qSign in to save attempts.Show answer← PreviousSolutionsDiscussionLoading…Sign in with Google