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Mathematics 20 Online
OpenStudy (trojanpoem):

Limit sin(tan(5x)) / 4x

OpenStudy (broskishelleh):

Plugging in x=0 gives you 0/0, so apply l'Hopitals rule to get 4cos(4x) / 5sec^2(5x) Now plug in x=0 to get 4/5. Answer: 4/5

OpenStudy (jdoe0001):

hmm he never did say anything about \(\bf x\to 0\) =)

OpenStudy (jdoe0001):

so... we really dunno where "x" is going to

OpenStudy (broskishelleh):

@jdoe0001 But shouldn't it be? How is it solvable without the x?

OpenStudy (trojanpoem):

x = 0 he is totally right.

OpenStudy (jdoe0001):

well.. may well be... but heheh

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