A

1103084905

Level: 
A
Which sequence is defined by the given graph?
\( \left( a_n \right)^{5}_{n=1} = 2\text{, }\ 1\text{, }\ 3\text{, }\ 1\text{, }\ 2 \)
\( \left( a_n \right)^{10}_{n=1} = 1\text{, }\ 2\text{, }\ 2\text{, }\ 1\text{, }\ 3\text{, }\ 3\text{, }\ 4\text{, }\ 1\text{, }\ 5\text{, }\ 2 \)
\( \left( a_n \right)^{5}_{n=1} = 1\text{, }\ 2\text{, }\ 3\text{, }\ 4\text{, }\ 5 \)
\( \left( a_n \right)^{5}_{n=1} = 1\text{, }\ 1\text{, }\ 2\text{, }\ 2\text{, }\ 3 \)

1003084904

Level: 
A
We were given a sequence \( \left( \frac1n \right)^{\infty}_{n=1} \). Which expression describes the term \( a_{n-1}\ (n\in\mathbb{N}; n>1 ) \) of the given sequence?
\( a_{n-1} = \frac1{n-1} \)
\( a_{n-1} = n-1 \)
\( a_{n-1} = \frac1n \)
\( a_{n-1} = \frac1{2n-1} \)

1003084903

Level: 
A
The table contains ordered pairs of numbers \( [n;a_n] \). \[ \begin{array}{|c|c|c|c|c|c|} \hline n & 1 & 2 & 3 & 4 & 5 \\\hline a_n & -1 & 1 & -2 & 2 & -3 \\\hline \end{array} \] Which sequence is defined by the table?
\( \left(a_n\right)^5_{n=1}=-1\text{, }\ 1\text{, }-2\text{, }\ 2\text{, }-3 \)
\( \left(a_n\right)^{10}_{n=1}=1\text{, }-1\text{, }\ 2\text{, }\ 1\text{, }\ 3\text{, }-2\text{, }\ 4\text{, }\ 2\text{, }\ 5\text{, }-3 \)
\( \left(a_n\right)^5_{n=1}=1\text{, }\ 2\text{, }\ 3\text{, }\ 4\text{, }\ 5 \)
\( \left(a_n\right)^5_{n=1}=0\text{, }\ 3\text{, }\ 1\text{, }\ 6\text{, }\ 2 \)

1003084902

Level: 
A
We are given a sequence \( \left( 3n-2\right)^{\infty}_{n=1} \). What does this formula express?
a sequence of all natural numbers which after dividing by \( 3 \) give the remainder \( 1 \)
a sequence of all natural numbers which are divisible by \( 3 \)
a sequence of all natural numbers which are divisible by \( 2 \)
a sequence of all odd natural numbers

1003084901

Level: 
A
We were given a sequence \( \left( 2n \right)^{\infty}_{n=1} \). What does this formula express?
a sequence of all even natural numbers
a sequence of all natural numbers
a sequence of all odd natural numbers
a sequence of all natural numbers that are divisible by \( 5 \)