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This question is a typical example aimed to test the student's understanding of the quotient rule, a technique which is used very often in calculus problems. Answer: For a function f(x) = cosx/sinx = u/v,...

During the Nazis' years in power between 1933 and 1945, Joseph Goebbels was given the very important task of making sure that the Nazi message was effectively spread, through the use of propaganda. One of...

We can identify xe^(-2x) as a product and hence we will most probably need to use integration by parts.

We then set u = x and v' = x^(-2x). It is important to do it this way round so that when we d...

Super volcanoes are much bigger than normal volcanoes, usually erupting at least 1000 cubic km of material in a single event and far less frequently than normal volcanoes. Normal volcanos erupt nearer to ...

The subjunctive is known as mood rather than a tense in French as it denotes emotions such as hope, fear, desire as well as uncertainty which are triggered through certain verbs and impersonal phrases. Th...