TI-M: trig and continuity


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TI-M: trig and continuity




How can i find out where a function is discontinuous?  Lets take for
example:
f(x)=sin(x^2-2)?
When i put it into my calculator using the zeros( function
zeros(sin(x^2-2),x) the answer the calculator gives me is
{when(@n2greater than or equal to the square root of (@n2*pi+2) and a
whole bunch of other junk, am i doing it wrong? because the answer should
be none.  Help, also if anybody has any programs for this and trigometric
limits can you tell me where to get them?  Thanks a lot.

Chris
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