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Firstly, let's start with the 'imperfecto' tense as it's the easiest to differentiate. The endings for this tense are as follows:

For regular verbs ending -AR in the infinitive (that is t...

First step I would take would make it look less intimidating by converting all components into sin and cos i.e

2(((sinx)/(cosx))^2) + 1/((cosx)^2) = 1

Notice that there is a...

Log rules:

log(a) + log(b) = log(ab)

so, in this case, we must find x such that 7x = 21

thus x = 3

similarly, log(a) - log(b) = lo...

Note that sqrt(ab)=sqrt(a)sqrt(b)

Thus to have A, an integer, we must find the highest number 'a' that is a square number and is also a factor of 50.

So, a=25 and b=2 (ab=25...

First of all, don't worry if you're feeling overwhelmed by the amount of German vocabulary you need to know – sometimes it can feel like quite a lot, especially if you haven't been learning the languag...