if a= 3+root 5/2 then find the value of A square +1/A SQUARE
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a=3+√5/2
a²=23/2+6√5/2
1/a=1/(3+√5/2)
=(6-2√5/2)/13
a²+1/a²=23/2+6√5/2+(6-2√5/2)/13
a²=23/2+6√5/2
1/a=1/(3+√5/2)
=(6-2√5/2)/13
a²+1/a²=23/2+6√5/2+(6-2√5/2)/13
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