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Cube roots or higher

If i am trying to do anything with cube roots or the 4th roots or any thing like that. what keys in which oders do i put them.

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If you want to take the nth root, enter the root first then press math 5 and then the number you are trying to take the root of.  For example to take the 4th root of 1000, press 4, math, 5, 1000, enter.

Posted on Feb 03, 2009

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How do you put in radicals in the casio fx-300ms


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Trying to find the surface area of a sphere given the volume: V = 4/3 X pi X r cube problem given vol. find the surface area v = 5000 5000(3/4 pi =r cube the book reads: 3 cube before and the square...


Almost exactly the way it's written in the book.

In the LineIO mode press
3 SHIFT [xth-root] 5 0 0 0 * 3 / ( 4 * SHIFT [pi] ) ) =

In the MathIO mode press
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* is the multiply key
/ is the divide key
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BTW there's no "square root" in this problem. There's a "cube root" or "third root". Square root is the second root.

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1 Answer

Is it possible to calculate cube root or higher with BA ii plus?


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1 Answer

Cube roots


You use the y^x (y to the x) key along with the 2nd function key. That does the opposite operation.

So, let's pick something we know the answer to as an example. How about the cube root of 8? We know 8 = 2 X 2 X 2, so the cube root of 8 will be 2.

Here's how:

8 2nd y^x 3 =

The display will show 2.

The three is the root you want. You can put in any number, with 2 being the square root, 3 the cube root, etc.

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