Question

if x=7-root3 then find x^3-1/x^3

Answer 1

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Given that,

X = 7 - √3

X = 7 - 1.732

X = 5.268

Now.....,

x³-1
-----
x³

5.268 - 1
-------------
5.268

4.268
---------
5.268

0.81017

Therefore x³-1/x³ = 0.81017
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