this calculus video tutorial provides a basic introduction into evaluating limits of trigonometric functions such as sin, cos, and tan.
To work out the area of a square or rectangle, multiply its height by its width.
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Finding the Nth Term YouTube
A number pattern which increases (or decreases) by the same amount each time is called a linear sequence. The amount it increases or decreases by is known as the common difference.
Learn about and revise linear number sequences, finding the nth term and the common difference with bbc bitesize ks3 maths.