Let f(x)={0 if x cannot equal 0 ; pi if x=0 I got this wrong I think. 1) lim x->0 f(x)=0 2)lim x->0 f(f(x))=1 3)lim x->0 cos(f(x))=pi 4) lim x->0 f(sin(x))=0
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Originally Posted by LAPOSH42 Let f(x)={0 if x cannot equal 0 ; pi if x=0 I got this wrong I think. 1) lim x->0 f(x)=0 correct 2)lim x->0 f(f(x))=1correct 3)lim x->0 cos(f(x))=pi incorrect 4) lim x->0 f(sin(x))=0 correct .
Last edited by Plato; September 24th 2011 at 01:34 PM.
for #2 is this right lim x->0 cos(0)=1
Originally Posted by LAPOSH42 for #2 is this right lim x->0 cos(0)=1 correct .
and lim x->0 f(f(x))=pi? do i have to write it in a format or do I just put equal pi
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