find the answer with explanation
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(a+1/a)^2=3
then...
a+1/a=root 3
now... cube of both side
(a+1/a)^3=(root 3)^
a^3+1/a^3+3a×1/a (a+1/a)=3root3
a^3+1/a^3+3 (root3)=3root 3
a^3+1/a^3=(3root3)-(3root3 )
a^3+1/a^3=0
then...
a+1/a=root 3
now... cube of both side
(a+1/a)^3=(root 3)^
a^3+1/a^3+3a×1/a (a+1/a)=3root3
a^3+1/a^3+3 (root3)=3root 3
a^3+1/a^3=(3root3)-(3root3 )
a^3+1/a^3=0
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