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Identifying The Nth Term Of A Arithmetic Sequence

Identifying the $n$ th term of a sequence: {-1,4,-9,16,…}.

$a_n=2n+3$

$a_n=n-3$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {1,8,27,64,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {-1, $\frac{1}{4}$ , $\frac{-1}{27}$ , $\frac{1}{256}$ ,...}.

$a_n=3n$

$a_n=(\frac{-1}{n})^n$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {1,2,3,4,…}.

$a_n=n$

$a_n=3+(n-1)6$

$a_n=2n+1$

What is the 98th term of the sequence whose 20th term is 30 and common difference is 5?

Identifying the $n$ th term of a sequence: {3,6,9,12,…}.

$a_n=2n+3$

$a_n=3n$

$a_n=2n+1$

Identifying the $n$ th term of a sequence: {1,4,9,16,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {0,1,1,2,3,…}.

$a_n=2n+3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$

What is the 400th term of the sequence whose 30th term is 96 and the common difference is 12?

What is the 1st term of the sequence whose 45th term is 120 and common difference is 7?

Questions

Time

Score

Identifying The Nth Term Of A Arithmetic Sequence

Identifying the $n$ th term of a sequence: {-1,4,-9,16,…}.

$a_n=2n+3$

$a_n=n-3$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {1,8,27,64,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {-1, $\frac{1}{4}$ , $\frac{-1}{27}$ , $\frac{1}{256}$ ,...}.

$a_n=3n$

$a_n=(\frac{-1}{n})^n$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {1,2,3,4,…}.

$a_n=n$

$a_n=3+(n-1)6$

$a_n=2n+1$

What is the 98th term of the sequence whose 20th term is 30 and common difference is 5?

Identifying the $n$ th term of a sequence: {3,6,9,12,…}.

$a_n=2n+3$

$a_n=3n$

$a_n=2n+1$

Identifying the $n$ th term of a sequence: {1,4,9,16,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {0,1,1,2,3,…}.

$a_n=2n+3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$

What is the 400th term of the sequence whose 30th term is 96 and the common difference is 12?

What is the 1st term of the sequence whose 45th term is 120 and common difference is 7?

Incorrect

Great!

Questions

Time

Score

Identifying The Nth Term Of A Arithmetic Sequence

Identifying the ﻿nnn﻿th term of a sequence: {-1,4,-9,16,…}.

﻿an=2n+3a_n=2n+3an​=2n+3﻿

﻿﻿an=n−3a_n=n-3an​=n−3﻿

﻿an=(−1)nn2a_n=(-1)^nn^2an​=(−1)nn2﻿

Identifying the ﻿nnn﻿th term of a sequence: {1,8,27,64,…}.

﻿an=n3a_n=n^3an​=n3﻿

﻿an=an−1+an−2a_n=a_{n-1}+a_{n-2}an​=an−1​+an−2​﻿

﻿an=(−1)nn2a_n=(-1)^nn^2an​=(−1)nn2﻿

Identifying the ﻿nnn﻿th term of a sequence: {-1,﻿14\frac{1}{4}41​﻿ ,﻿−127\frac{-1}{27}27−1​﻿,﻿1256\frac{1}{256}2561​﻿,...}.

﻿an=3na_n=3nan​=3n﻿

﻿an=(−1n)na_n=(\frac{-1}{n})^nan​=(n−1​)n﻿

﻿an=n2a_n=n^2an​=n2﻿

Identifying the ﻿nnn﻿th term of a sequence: {1,2,3,4,…}.

﻿an=na_n=nan​=n﻿

﻿an=3+(n−1)6a_n=3+(n-1)6an​=3+(n−1)6﻿

﻿an=2n+1a_n=2n+1an​=2n+1﻿

What is the 98th term of the sequence whose 20th term is 30 and common difference is 5?

Identifying the ﻿nnn﻿th term of a sequence: {3,6,9,12,…}.

﻿an=2n+3a_n=2n+3an​=2n+3﻿

﻿an=3na_n=3nan​=3n﻿

﻿an=2n+1a_n=2n+1an​=2n+1﻿

Identifying the ﻿nnn﻿th term of a sequence: {1,4,9,16,…}.

﻿an=n3a_n=n^3an​=n3﻿

﻿﻿an=an−1+an−2a_n=a_{n-1}+a_{n-2}an​=an−1​+an−2​﻿

﻿an=n2a_n=n^2an​=n2﻿

Identifying the ﻿nnn﻿th term of a sequence: {0,1,1,2,3,…}.

﻿an=2n+3a_n=2n+3an​=2n+3﻿

﻿an=an−1+an−2a_n=a_{n-1}+a_{n-2}an​=an−1​+an−2​﻿

﻿an=(−1)nn2a_n=(-1)^nn^2an​=(−1)nn2﻿

What is the 400th term of the sequence whose 30th term is 96 and the common difference is 12?

What is the 1st term of the sequence whose 45th term is 120 and common difference is 7?

Incorrect

Great!

Identifying the $n$ th term of a sequence: {-1,4,-9,16,…}.

$a_n=2n+3$

$a_n=n-3$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {1,8,27,64,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$

Identifying the $n$ th term of a sequence: {-1, $\frac{1}{4}$ , $\frac{-1}{27}$ , $\frac{1}{256}$ ,...}.

$a_n=3n$

$a_n=(\frac{-1}{n})^n$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {1,2,3,4,…}.

$a_n=n$

$a_n=3+(n-1)6$

$a_n=2n+1$

Identifying the $n$ th term of a sequence: {3,6,9,12,…}.

$a_n=2n+3$

$a_n=3n$

$a_n=2n+1$

Identifying the $n$ th term of a sequence: {1,4,9,16,…}.

$a_n=n^3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=n^2$

Identifying the $n$ th term of a sequence: {0,1,1,2,3,…}.

$a_n=2n+3$

$a_n=a_{n-1}+a_{n-2}$

$a_n=(-1)^nn^2$