If we know that one part of a + a = 3, then the value of one part of a & # 178; + A & # 178; is?

If we know that one part of a + a = 3, then the value of one part of a & # 178; + A & # 178; is?

(a+1/a)²=9
a²+1/a²+2=9
a²+1/a²=7
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