How do I calculate this? limx→0+sinxsin√x
If I tried using l'Hopital's rule, it would become
limx→0+cosx12√xcos√x
which looks the same. I can't seem to find a way to proceed from here. Maybe it has something to do with sinxx→1
but I'm not sure what to do with it. Any advice?
Oh and I don't understand series expansions like Taylor's series.
Answer
By equvilency near zero sinx≈x we have
limx→0+sinxsin√x=limx→0+x√x=0
or
limx→0+sinxsin√x=limx→0+sinxx√xsin√x.√x=1×1×0=0
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