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For any sequence where there is a common difference (it increases or decreases with the same amount, n, each time) you can find the nth term using the formula: dn+(a-d)&q...
Contrary to popular belief, the passive is a 'voice' not a tense, but it can be used in different tenses - the present, past or future for example.
Confusing huh? So when should you use t...
For many people (including, unfortunately, French people), this is a recurrent mistake, despite the fact it can be avoided easily.
Those endings are used for different things. The first one, '...
"Integration by parts" is one of several methods in our arsenal that we can use to integrate a function f(x). It involves expressing f(x) as the product of tw...
To find the roots, we solve the equation 3x2 + 13x + 4 = 0.
We could try factorising the equation, which gives...
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