- Thread starter Guitarman
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I don't want to sound stupid, but how do I simplify the sixth root of 27/64? Which buttons do I press on my TI-86?stapel said:Simplify the sixth root of 27/64.

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JUST FORGET YOUR TI-86.Guitarman said:I don't want to sound stupid, but how do I simplify the sixth root of 27/64? Which buttons do I press on my TI-86?

It is of no use to you here.

This is all about fundamentals!

\(\displaystyle \sqrt[6]{{\frac{{27}}{{64}}}} = \sqrt[6]{{\frac{{3^3 }}{{4^3 }}}} = \left( {\frac{{3^3 }}{{4^3 }}} \right)^{\frac{1}{6}} = \frac{{3^{\frac{1}{2}} }}{{4^{\frac{1}{2}} }} = \sqrt {\frac{3}{4}}\)

The TI-86 cannot help you understand that. You must understand the basics.

Otherwise the calculator is useless.