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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: asdfkadsfj on February 20, 2022, 02:13:45 pm

Title: finding exact roots on ti nspire
Post by: asdfkadsfj on February 20, 2022, 02:13:45 pm

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 :)

Title: Re: finding exact roots on ti nspire
Post by: fred42 on March 07, 2022, 02:47:16 pm

Mine works. Perhaps you didn't type it in correctly?

Title: Re: finding exact roots on ti nspire
Post by: asdfkadsfj on March 09, 2022, 05:28:51 pm

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.

Title: Re: finding exact roots on ti nspire
Post by: asdfkadsfj on March 09, 2022, 06:00:04 pm

mystery solved i updated the os and it works now.. yay!