Consider the sequence ${{1}^{2}}-5$, ${{2}^{2}}-7$, ${{3}^{2}}-9$, ${{4}^{2}}-11$, … Find an

Question

Consider the sequence ${{1}^{2}}-5$, ${{2}^{2}}-7$, ${{3}^{2}}-9$, ${{4}^{2}}-11$, … Find an expression, in terms of $n$, for the ${{n}^{\mathrm{th}}}$ term, ${{T}_{n}}$, of this sequence. Evaluate ${{T}_{12}}$.

Accepted Answer

(a) $T_n=n^2-2n-3$. (b) $117$.

IP1U7 Exercise Q5

IP1U7 Exercise Q5

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