Solved

A) No
B) Yes

Question 2

Multiple Choice

 Is the system shown closed under the operation? ∗qrstqtsrqrsqtrsrtqstqrst\begin{array}{l}\text { Is the system shown closed under the operation? }\\\begin{array} { c | c c c c } * & q & r & s & t \\\hline q & t & s & r & q \\r & s & q & t & r \\s & r & t & q & s \\t & q & r & s & t\end{array}\end{array}


A) No
B) Yes

Correct Answer:

verifed

Verified

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