Math, asked by irasinghalks, 1 month ago

If a = 3 - √8 , Find a – 1/a​

Answers

Answered by singhdipanshu2707200
0

Step-by-step explanation:

a -  \frac{1}{a}  \\  = 3 -  \sqrt{8} -  \frac{1}{3 -  \sqrt{8} }   \\  = \frac{9 + 8 - 6 \sqrt{8 - 1} }{3 -  \sqrt{8} }  \\   \\  \frac{6(3 -  \sqrt{8}) }{3 -  \sqrt{8} }  \\  = 6

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