Strictly monotonic increasing means that the function is always increasing and never stays the same, while monotonic increasing means that the function is always increasing or staying the same. In other words, a strictly monotonic increasing function will always have a positive slope, while a monotonic increasing function can have a zero slope at certain points. Therefore, strictly monotonic increasing functions are a subset of monotonic increasing functions. **

Monotonic behavior refers to a consistent and unidirectional trend in a set of data or a mathematical function. In a monotonic increasing function, the values consistently increase as the input variable increases. Conversely, in a monotonic decreasing function, the values consistently decrease as the input variable increases. Monotonic behavior is important in various fields such as economics, engineering, and mathematics, as it helps in understanding and predicting the behavior of systems and processes. **

Strictly monotonic decreasing/increasing means that the function is either always decreasing or always increasing, without any flat regions or plateaus. Monotonic decreasing/increasing, on the other hand, allows for flat regions where the function remains constant. In other words, strictly monotonic functions do not have any horizontal sections, while monotonic functions may have horizontal sections. **

Strictly monotonic increasing/decreasing means that the function is either always increasing or always decreasing, without any flat regions or plateaus. Monotonic increasing/decreasing, on the other hand, allows for the possibility of flat regions or plateaus where the function remains constant. In other words, strictly monotonic functions do not have any horizontal sections, while monotonic functions may have some. **

A function is strictly monotonic if it is either strictly increasing or strictly decreasing. This means that for any two points in the function's domain, the function values at those points are either strictly increasing or strictly decreasing. In other words, the function does not have any plateaus or flat regions where the function values remain constant. **

No, not every convergent sequence is monotonic. A convergent sequence is one that approaches a specific limit as the number of terms in the sequence increases. A monotonic sequence, on the other hand, is one that is either always increasing or always decreasing. While some convergent sequences may be monotonic, there are also convergent sequences that oscillate or have a mix of increasing and decreasing terms as they approach their limit. Therefore, not every convergent sequence is monotonic. **

To indicate that a function is strictly increasing in an interval i, you would show that for any two points a and b in the interval i, where a < b, the function value at a is less than the function value at b, i.e., f(a) < f(b). This would demonstrate that the function is strictly increasing in the interval i. To indicate that a function is non-monotonic in an interval i, you would need to show that there exist points a and b in the interval i, where a < b, such that the function value at a is less than the function value at b, and also points c and d in the interval i, where c < d, such that the function value at c is greater than the function value at d, i.e., f(a) < f(b) and f(c) > f(d). This would demonstrate that the function is non-monotonic in the interval i. **

No, not all continuous monotonic functions are differentiable. While all differentiable functions are continuous and monotonic, the reverse is not necessarily true. For example, the absolute value function is continuous and monotonic, but it is not differentiable at the point where the function changes direction. Therefore, it is important to note that while continuous monotonic functions often are differentiable, it is not a guarantee. **