If x =5-und.root 3 upon 5plus ur3 and y= 5 plus ur3 upon 5- ur3, show that xsq. - ysq.=10ur3upon11

If x =5-und.root 3 upon 5plus ur3 and y= 5 plus ur3 upon 5- ur3, show

1.	If x =5-und.root 3 upon 5plus ur3 and y= 5 plus ur3 upon 5- ur3, show that xsq. - ysq.=10ur3upon11
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