3 years ago

Prove that lim x->0 cos(1/x) does not exist.

1 answer:

5 0

The limit of the function cos(1/x) as x approaches zero can be determined by substituting x with zero to the expression given. IN this case, 1/0 is equal to infinity. Using the rule of cosines, the maximum value of the cosine expression is 1. Hence the limit should be 1.

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