How to cube root on ti 83 plus
Cube Root on the TI-83plus and TI-84 family of Calculators
Timecodes:
in this video we're going to take a look
at calculating the cube root of a number
using the ti-83 plus and the ti-84
families of calculators
most graphing calculators are fairly
close to the same and so if you follow
this you'll probably pick up if you use
a scientific you usually have to put the
number the radicand in first and then
press the the appropriate button but
here we go to access the cube root
function what we need to do is we need
to go into the math menu so we're going
to press the math button and you'll see
option 4 contains the cube root of and
so we can eat either press 4 or we can
scroll down and press ENTER and that's
going to activate the cube root you'll
see the little 3 out in front after that
we simply put in our radicand which is
this number right here
this is our radicand the three is our
index and so we've already got that
index in there and we have the radicand
we just press ENTER and that gives us
that gives us our answer so the cube
root of 64 is 4 now unlike square roots
the cube root of negative numbers are
negative
there's no imaginary roots and so we
look at this and we say ok well let's go
into or go press our math button and we
scroll down or press number 4 if you
press number 4 it will automatically
select it and boot you back to the home
screen put in negative 5 making sure to
use the negative sign not the minus sign
press ENTER and there's your answer and
again if it's not perfect then it's
going to be an irrational number and
therefore you're going to get an
infinite number of decimals and they're
not going to repeat
you
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