The sum of the first $n$ terms of a sequence is given by $2{{n}^{2}}-n$. Find the \({{10}^{\math

Question

The sum of the first $n$ terms of a sequence is given by $2{{n}^{2}}-n$. Find the ${{10}^{\mathrm{th}}}$ term of this sequence. Write down an expression for the $n^{\mathrm{th}}$ term.

Accepted Answer

(a) $T_{10}=37$ (b) $T_n=4n-3$

IP1U7 7.3 Worked Example 1

IP1U7 7.3 Worked Example 1

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