3 years ago

What is the value of 3√4096? A. 512 B. 64 C. 16 D. 8

Mathematics

1 answer:

padilas [110]3 years ago

6 0

The square root of 4096 is 64 however ∛4096 is 16 because 16*16*16 = 4096. Hope I helped.

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Help! Please:) Amd Thank you!!!

Mrrafil [7]

They get 2/3 because 2 divided by 3=2/3.

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3 years ago

If z^2+1/z^2=11 , find the value of z^3-1/z^3,using only the positive value of z-1/z

vredina [299]

Hello,

Let's assume

$t=z- \dfrac{1}{z} \\\\

t^2=z^2-2+ \dfrac{1}{z^2}= 11-2=9==\ \textgreater \ t=3\\\\

t^3=z^3-3z^2* \dfrac{1}{z} +3z* \dfrac{1}{z^2} - \dfrac{1}{z^3} \\\\
=z^3 - \dfrac{1}{z^3} -3(z-\dfrac{1}{z})\\\\
z^3 - \dfrac{1}{z^3}=t^3+3t=3^3+9=27+9=36


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