The infimum at 0 is 0. In mathematical terms, the infimum of a set is the greatest lower bound of the set. Since 0 is the smallest element in the set of non-negative real numbers, it is also the greatest lower bound, or infimum, of the set at 0. Therefore, the infimum at 0 is 0. **

No, an asymptote is not an infimum-supremum. An asymptote is a line that a curve approaches but never actually reaches, while an infimum is the greatest lower bound and a supremum is the least upper bound of a set. These concepts are related to the limits and bounds of a set of numbers, while an asymptote is related to the behavior of a curve as it approaches infinity. Therefore, an asymptote and an infimum-supremum are different mathematical concepts. **

To determine the supremum (least upper bound) and infimum (greatest lower bound) of a set, you need to first identify all the upper bounds and lower bounds of the set, respectively. Then, you find the smallest upper bound and the largest lower bound among them. The smallest upper bound is the supremum, while the largest lower bound is the infimum. In mathematical terms, the supremum is denoted as sup(S) and the infimum is denoted as inf(S) for a set S. **

The infimum of a set is the greatest lower bound of the set. In the case of the set {2}, the infimum is simply 2 itself, because it is the greatest lower bound of the set. Therefore, the infimum of 2 is 2. **

The supremum of a sequence is the smallest real number that is greater than or equal to every term in the sequence. The infimum is the largest real number that is less than or equal to every term in the sequence. To find the supremum and infimum of a sequence, we need to find the maximum and minimum values of the sequence. If the sequence is bounded, then the supremum and infimum will be the maximum and minimum values of the sequence, respectively. If the sequence is unbounded, then the supremum and infimum may not exist. **

A bounded set without a supremum and infimum is a set that has both an upper and lower bound, but does not have a greatest lower bound (infimum) or a least upper bound (supremum). This means that the set does not have a smallest element that is greater than or equal to all the elements in the set, nor does it have a largest element that is less than or equal to all the elements in the set. In other words, the set does not have a well-defined maximum or minimum element. **

The supremum of a cosine function is 1, which is the maximum value that the function can attain. The infimum of a cosine function is -1, which is the minimum value that the function can attain. These values are achieved as the cosine function oscillates between -1 and 1 as its argument varies. **

To determine the supremum (or least upper bound) of a set, you need to find the smallest number that is greater than or equal to all the numbers in the set. The infimum (or greatest lower bound) is the largest number that is less than or equal to all the numbers in the set. The maximum is the largest number in the set, and the minimum is the smallest number in the set. To find these values, you can use mathematical techniques such as finding the maximum and minimum values, or using the properties of supremum and infimum. **