Math, asked by Ifti10, 4 days ago

x+1/x=8 (given)
x-1/x=?

Answers

Answered by Anushkas7040
2

Answer:

\frac{-63}{8}

Step-by-step explanation:

x+\frac{1}{x}=8\\\\=>\frac{x^{2} +1}{x}=8\\\\=>x^{2} +1=8x\\=>x^{2} =8x-1\\\\=>\frac{x^{2} }{8x}=-1\\\\=>\frac{x}{8}=-1\\\\=>x=-8

x-\frac{1}{x}\\\\=>(-8)-(\frac{1}{-8} )\\\\=> (-8)-(\frac{-1}{8} )\\\\=>(-8)+(\frac{1}{8} )\\\\=>\frac{-64+1}{8}\\\\=>\frac{-63}{8}

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