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Standard form is a way of writing really big numbers in what is often a more compact manner. It also makes a really large number more readable. To put a number in standard form we write it by having a num...

The derivative is calculated by multiplying by the degree of the variable then taking taking away 1 from the degree.So to calculate the derivative of x^2 we multiple the variable (which is x) by the degre...

To solve simultaneous equations you need to cancel out variables like x and y one at a time to solve for the other. In the edexcel GCSE 2017 paper this question came up: solve simultaneously x²...

Answer: 17
First must find the nth term = dn + b (difference x term number + the back track)In this instance the difference is 3 and the backtrack, term before the first is 2Therefore the nth term is...

The preterite tense is used to describe one off, completed actions that happened in the past. Some examples are: I WENT to the park (fui al parque), I ate a sandwich (comí un bocadillo).
The imperfec...