Question

solve this..

please...

as fast as you can..

step by step..​

Answer 1

$\huge\mathcal\purple{Heya..Mate!!}$

$\huge\bold\pink{ANSWER:}$

The answer is given in the attachment above....have a glimpse at it...

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Hope it helps...:-)

✨❤⭐♥✨❤⭐♥✨

$</em><em>B</em><em>e \: </em><em>B</em><em>rainly...$

✌✌✌

Answer 2

Hey❤️

Given,

a= (1 - √2)

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$a \: - \frac{1}{a}$

$= (1 - \sqrt{2} ) - \frac{1}{(1 - \sqrt{2}) }$

$= \frac{ ({1 - \sqrt{2} })^{2} - 1}{1 - \sqrt{2} }$

$= \frac{(1 - 2 \sqrt{2} + 2) - 1\: }{1 - \sqrt{2} }$

$= \frac{2 - 2\sqrt{2} \: }{1 - \sqrt{2} }$

$= \frac{2(1 - \sqrt{2} ) \: }{1 - \sqrt{2} }$

$= 2$

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(a +1/a)³

= (2)³

= 8