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3.02 Sequences and their defining rules - calculator assumed

Interactive practice questions

What is the $21$21st term in the following sequence?

$-3,-6,-9,-12,-15,\ldots$3,6,9,12,15,

Medium
1min

What is the $53$53rd term in the following sequence?

Medium
1min

What is the $39$39th term in the following sequence?

Medium
< 1min

If $T_n$Tn describes the $n$nth term in the following sequence, what is $T_3+T_5$T3+T5?

Easy
< 1min
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