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How do you find the nth term formula for a sequence with non-constant difference?

Take the sequence;

9,    12,    19,    30,    ...

(1) The first step is always to look at difference between the terms;


9,    12,    19,...

RS
Answered by Richard S. • Maths tutor
206035 Views

Using Context

Appropriate use of context is key in making your essay more two dimensional and mature. Context does not simply mean the historical background behind the text you're studying, but the literary environm...

AP
5144 Views

What is a separable verb and how is it formed?

In German some verbs are separable. This means that they are formed of two parts which can be separated. Some examples are:

ankommen (to arrive),

GH
Answered by George H. • German tutor
3710 Views

Passé Composé/Adverb endings (é/ée etc.)

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