Is the following statement correct?

If I have questions, I can ask peers, the tutor, exercise instructors or the lecturer for help and assistance. In order to let others also profit from the question and the answer, I should ask via Moodle forum.

Is the following statement correct?

An image is better than a thousand words. If a property can be easily seen from the graph of a function, then a formal proof is never required.

Is the following statement correct?

In order to prove a statement, I should first try to really understand the underlying definitions.

Is the following statement correct?

Instead of giving a proof for a statement, I can also just consider an example. If the statement is true for the example, it is also true in general.

Let and .

Select the correct statements.

Determine the type of the following exercise: (For this, you do not need to fully understand each part of the given exercise!)

Let and be non-empty and bounded subsets of .

1.  Suppose the set has a minimum. Show that .
2. Define . Show that .

Rearrange this formula to find an expression for the speed of light and select the correct answer from the options below.

Is the following statement correct?

If I cannot immediately solve an exercise, I search via relevant keywords on the internet. Although I may not understand all notions, copy-paste and merging results from different websites will certainly be a good solution for the exercise.

Determine the type of the following exercise: (For this, you do not need to fully understand each part of the given exercise!)

Solve the following system by Gaussian elimination:

Let be the universal set and let be a proper subset.

What is ?