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June 26, 2022, 11:21:52 am

Author Topic: finding exact roots on ti nspire  (Read 1292 times)  Share 

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asdfkadsfj

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finding exact roots on ti nspire
« on: February 20, 2022, 02:13:45 pm »
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hi guys,
i was trying to find the roots for the function f(x)=(x-2)^4-6
for some reason, when i type solve((x-2)^4-6=0,x) i don't get a solution - it only works when i type solve((x-2)^4=6,x). does anyone know why?
thanks :)
« Last Edit: February 20, 2022, 02:22:05 pm by asdfkadsfj »

fred42

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Re: finding exact roots on ti nspire
« Reply #1 on: March 07, 2022, 02:47:16 pm »
+1
Mine works. Perhaps you didn't type it in correctly?

asdfkadsfj

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Re: finding exact roots on ti nspire
« Reply #2 on: March 09, 2022, 05:28:51 pm »
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strangely, it only gives me an example when in approximate mode. in exact mode, it simply returns an empty box if in the zeros function, or if in the solve function, it returns x(x^3-8x^2+24x-32)=-10.
« Last Edit: March 09, 2022, 05:33:34 pm by asdfkadsfj »

asdfkadsfj

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Re: finding exact roots on ti nspire
« Reply #3 on: March 09, 2022, 06:00:04 pm »
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mystery solved i updated the os and it works now.. yay!