if x- 1/x = 8,Find x2 + 1/x2
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★ANSWER♣
62
Step-by-step explanation:
❒ let x be a
❒ let 1/x be b
★ According to the question:-
↦a+b=8
❒ Square on both the sides:-
↦(a+b)²=8²
↦a²+b²+2ab=64
↦a²+b²+2•x•1/x=64
↦a²+b²+2=64
↦a²+b²=62
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