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Answer:
x=2-√3
1/x = 1/2-√3
after rationalising the denominator,
1/x=2+√3
x²-1/x² = (x- 1/x)(x+ 1/x)
=(2-√3 -2-√3)(2+√3+2-√3)
=(-2√3)(4)
= -8√3
Step-by-step explanation:
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