Mathematics: Please help me please I will make you brainliest

Please help me please I will make you brainliest

myparentsrock17

22.10.2021

$\\ \sf\longmapsto a+\dfrac{1}{a}=\sqrt{3}$

$\\ \sf\longmapsto \left(a+\dfrac{1}{a}\right)^3=\sqrt{3}^3$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}+\dfrac{3a^2}{a}+\dfrac{3a}{a^2}=3\sqrt{3}$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}+3a+\dfrac{3}{a}=3\sqrt{3}$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3\sqrt{3}-3a-\dfrac{3}{a}$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3\left(\sqrt{3}-a-\dfrac{1}{a}\right)$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3(0)$

$\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=0$

Proved

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absoul1143

20.07.2021

i think its d

Step-by-step explanation:

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