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Q.

How do you write the expression for the $n^{th}$ term of the sequence given $0, 3, 8, 15, 24$ ?

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a

n^{2} - 2!

b

n^{2} - 3!

c

n^{2} - 1!

d

n^{2} - 4!

answer is C.

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Detailed Solution

= a x^{2} \pm bx \pm c

= x^{2} \pm bx \pm c

\Rightarrow x^{2} - 1!

[Common difference

= - 1

]

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