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The answer is 1..(obviously not since x → ∞ (not 0) ). Notice that as x → ∞ , 1/x tends to zero while sin x oscillates between 1 and -1. Hence, x → ∞ lim x 1 × sin x = 0 × (a finite number ) = 0
Limit does not exist. Use Taylor expansion.
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Taylor expansion is an approximation about a point. So the expansion about X=0 gives no information about the function about infinity.
See oscillating limits on this page
Limit exists, apply squeeze theorem or Damien LaRocque's solution is perfect and if you don't still beleieve it use Wolfram alpha.
The limit that doesn't actually exist is sin (1/x). Sin x doesn't go further from -1,1 when x grows indefinitely, and the denominator grows indefinitely, which means that the number is reaching 0. Solution: 0.
As the numerator, sin(x), approaches infinity, it always stays within -1 and 1. But as the denominator, x, approaches infinity, it gets larger and larger. The numerator gets divided by larger and larger numbers, resulting in it constantly growing smaller (when the top is positive) or larger (when the topis negative) and consequently reaching zero
L'hopital's rule. The limit = 0.
How ??? Explain how l'opital's rule is applied here plz ...
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L'hopital's rule: When you have an undefined number, as in this case (sin(0)/0=infinity) you take the limit of the derivative of the top divided by the derivative of the bottom. In this case, let f(x)=the numerator and g(x)=the denominator. Then you take the limit as x approaches infinity of f'(x)/g'(x) which in this case would be cos(infinity)/1=0/1=0.
Sorry, I have no idea how to use LaTeX.
You can't use L^hopital's rule here because the limit as approches infiny of cos(x) isn't 0, that limit is undefined.
sinx is always b/w -1 and 1 so it is a finite number. also when we apply limits,x=(infinity)=1/0 which will give the solution a finite number*0=0 hence the answer
Actually the limit doesn't exist
It does and it is zero
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We can use the sandwich theorem. We know that: − 1 ≤ sin ( x ) ≤ 1
Thus, x → ∞ lim x − 1 ≤ x → ∞ lim x sin ( x ) ≤ x → ∞ lim x 1
Hence, 0 ≤ x → ∞ lim x sin ( x ) ≤ 0