- #1
rcmango
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Homework Statement
using the squeeze theorem:
lim cosn / sqrt(n)
n -> infinity
Homework Equations
cos/n/sqrt(n) and 1/sqrt(n)
The Attempt at a Solution
I just have a question about the squeeze theorem.
From my understanding, when using the squeeze theorem for these time of sequence calculus problems, I am always going to have the original equation in the middle?
also, why does one side of the squeeze theorem need to be negative?
this sequence approaches 0.
heres the work:
-1/sqrt(n) <= cosn/sqrt(n) <= 1/sqrt(n)
and, if this happened to be sin instead of cosine, would i just put 0 on both sides of the <= instead of the equations.
thanks alot.