Question

please tell fast please​

Answer 1

Answer:

i) 1/x = 1/(3 + 2√2)

= (3 - 2√2)/(3 - 2√2)(3 + 2√2)

= (3 - 2√2) / 9 - 8

= (3 - 2√2)/1

= (3 - 2√2)

ii) x - 1/x

= (3 + 2√2) - (3 - 2√2)

= 4√2

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