hi
im working through my maths lecture notes and i seem to be having a misunderstanding about when a limit is undefined or its infinite.
for example:
lim x->0 cosec (x)
lim x->0 1/sin (x)
= 1/0
I would have thought to label this limit as undefined as it shoots of to +- infinity at x=0, but the answer in the book is just '+infinity'. Is infinity and undefined interchangeable? i didn't think it was, or am i just missing something?
theres numerous times that I've run into this problem on a a few questions.
cheers
im working through my maths lecture notes and i seem to be having a misunderstanding about when a limit is undefined or its infinite.
for example:
lim x->0 cosec (x)
lim x->0 1/sin (x)
= 1/0
I would have thought to label this limit as undefined as it shoots of to +- infinity at x=0, but the answer in the book is just '+infinity'. Is infinity and undefined interchangeable? i didn't think it was, or am i just missing something?
theres numerous times that I've run into this problem on a a few questions.
cheers
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