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To do this, there are two rules, the Sine Rule and The Cosine Rule. 

The sine rule is a/Sin A   = b/Sin B = c/Sin C.  (the lower and uppercase are very important. The rule also stands if ...

The easiest way to solve this problems it via trial and error. For any quatdratic (ax² + bx  + C = 0), the coeficcent of x, (i...

The first thing to know is that a square has equal sides, and that the area of a square is length x length.

Therefore in this case

Length x length = 100    or    Length^...

6x + y = 8 (1)       4x - y = 12 (2)

Method 1 elimination:

-Adding/subtracting the two equations together to eliminate one of ...

To tackle sequence questions like this you first have to find the difference between each term of the sequence and this number will go in front of the 'n'. Then to find the full expression, you have to...