1003097002 | math4u.vsb.cz

SubArea:

Arithmetic sequences

Level:

Project ID:

1003097002

Source Problem:

Accepted:

1

Clonable:

1

Easy:

0

Find the common difference of an arithmetic sequence

{a_{n}}_{n = 1}^{\infty}

, if:

\begin{aligned} a_{11} + a_{4} & = - 19 \\ a_{6} + a_{7} & = - 13 \end{aligned}

- 3

3

7

- 1

10