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Questions >> CBSE XI >> Math >> Sequences and Series

Find $a_{20}$ if $a_n=\large\frac{n(n-2)}{n+3}$

asked Feb 18, 2014 by rvidyagovindarajan_1

1 answer

Find $a_9$ if $a_n=(-1)^{n-1}.n^3$

asked Feb 18, 2014 by rvidyagovindarajan_1

1 answer

Find $a_7$ if $a_n=\large\frac{n^2}{2^{n}}$

asked Feb 18, 2014 by rvidyagovindarajan_1

1 answer

Find $a_{17},\:a_{24}$ if $a_n=4n-3$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first 5 terms of the sequence whose general term is $t_n=n.\large\frac{n^2+5}{4}$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first $5$ terms of the sequence whose general term is $t_n=(-1)^{n-1}.\:5^{n+1}$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first 5 terms of the series whose general term is given by $t_n=\large\frac{2n-3}{6}$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first $5$ terms of the sequence whose $n^{th}$ term is given by $t_n=2^n$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first 5 terms of the sequence whose $n^{th}$ term is given by $t_n=\large\frac{n}{n+1}$

asked Feb 17, 2014 by rvidyagovindarajan_1

1 answer

Find the first 5 terms of the series whose $n^{th}$ term is $a_n=n(n+2)$

asked Feb 15, 2014 by rvidyagovindarajan_1

1 answer

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