2. If x+1/x=2 , then x²+1/x²=
with solution "no spam"
(a) 64
(b) 14
(c) 8
(d) 2
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Answer:
d
Step-by-step explanation:
(x+1/x)² = x²+1/x² + 2x×1/x
=> 4 -2 = x²+1/x²
=> 2 = x²+1/x² [Ans]
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