just operate on corresponding elements:
sum:
[-4 -1 15]
[-9 2 1]
find the sum or differnce
[ -2 -1 7 ] [ -2 0 8 ]
[0 -3 2 ] + [-9 5 -1 ]
1 answer
[ -2 -1 7 ] [ -2 0 8 ]
[0 -3 2 ] + [-9 5 -1 ]
1 answer
1 answer
1 answer
2 answers
1 answer