if a²+1/a= 12 find a³+1/a³
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Step-by-step explanation:
Given that,
a=2+
3
Then, Value of
a−
a
1
=2+
3
−
2+
3
1
=2+
3
−
2+
3
1
×
2−
3
2−
3
onrationalize
=2+
3
−
4−3
(2−
3
)
=2+
3
−2+
3
=2
3
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