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Question

Show that
(i) [5167][213 4][2134][5167]

(ii) 100211300102113014102113014100211300

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Solution

(i) [5167][2134]

=[5(2)1(3)5(1)1(4)6(2)+7(3)6(1)+7(4)]
=[1035412+216+28]=[713334]
[2134][5167]
=[2(5)+1(6)2(1)+1(7)3(5)+4(6)3(1)+4(7)]
=[10+62+715+243+28]=[1653925]
[5167][2134][2134][5167]
(ii) 100211300102113014
=1(1)+2(0)+3(2) 0(1)+1(0)+0(2)1(1)+1(0)+0(2) 1(1)+2(1)+3(3)0(1)+1(1)+0(3)1(1)+1(1)+0(3) 1(0)+2(1)+3(4)0(0)+1(1)+0(4)1(0)+1(1)+0(4)
=5018101411
102113014100211300
=1(1)+1(0)+0(1)0(1)+(1)(0)+1(1)2(1)+3(0)+4(1)1(2)+1(1)+0(1)0(2)+(1)(1)+1(1)2(2)+3(1)+4(1)1(3)+1(0)+0(0)0(3)+(1)(0)+1(0)2(3)+3(0)+4(0)
=1161011306
100211300102113014102113014100211300

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