Sequences with quadratic and cubic rules
find the formula for the nth term of each of the
following sequences.
a)3, 6, 11, 18,27
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The formula for the n-th term of a quadratic sequence is explained here. ... For example, the sequence, we saw above: 6,11,18,27,38,51… has formula: un=n2+2n+3 ... by finding the values of the coefficients a, b and c using the following three ... The following illustration shows all of the differences we're referring to in these ...
Step-by-step explanation:
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