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Calcisfun

Guest

Help with some calc

Does anyone know what the answer is to this question?

The limit of X --> 0 degrees   of (Sin x)/X

any help would be appreciated.

mikau

Member

Registered: 2005-08-22

Posts: 1,504

Re: Help with some calc

are you allowed to use l'Hopital's rule?

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A logarithm is just a misspelled algorithm.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 46,341

Re: Help with some calc

Yes, if makau's question is answered yes, the answer is 1. Because d/dx of Sinx is Cosx and d/dx of x is 1.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

The Fonz

Member

Registered: 2007-12-09

Posts: 1

Re: Help with some calc

thats the answer? i dont know, the question is in degrees not radians

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 46,341

Re: Help with some calc

zero degrees or zero radians, both are equal.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

The Fonz

Member

Registered: 2007-12-09

Posts: 1

Re: Help with some calc

no, the answer is not 1...look for an article by John Loase.

saudi_boy

Member

Registered: 2006-11-01

Posts: 41

Re: Help with some calc

this limit is one of famous limits

you can solve this limit by l'Hopital's rule(if you don't know this rule tell me to explain it).

The limit of X --> 0 degrees   of (Sin x)/X = 1

The limit of X --> 0 degrees   of (tan x)/X = 1

The limit of X --> 0 degrees   of (1-cosx)/X = 0

The Fonz

Member

Registered: 2007-12-09

Posts: 1

Re: Help with some calc

it's not 1....i have to find the article, but it's not 1

B Nightly

Guest

Re: Help with some calc

Dude, it is 1. Try sin(.1)/.1 and sin(0.001)/0.001 and ull see that it is approaching 1. Try the negative values and ull see ull get the same approach. Clearly it is 1.

Ricky

Moderator

Registered: 2005-12-04

Posts: 3,791

Re: Help with some calc

Definitely 1.

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"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

The Fonz

Member

Registered: 2007-12-09

Posts: 1

Re: Help with some calc

no..it's not, i will prove it as soon as i get the article.