# Sum of Every Second Row

0

Given a 2D tensor (matrix) `matrix` as input, return a tensor that has sum of all elements in rows 0, 2, 4,...

To solve this exercise, extract every second row from the given matrix using slicing with a step of 2. Then, compute the sum of each row to get the result.### Examples:

1

2

3

4

5

6

7

8

9

10

↓

3

11

19

1

1

2

2

3

3

4

4

↓

2

6

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