Assessment

Vectors: Lists of Numbers You Can Picture

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Warm-upQuestion 1 of 8

Let $a=[1,\,2]$ and $b=[1,\,2,\,3]$ . Which operations are valid? (Pick all.)

Add them:

a + b

Subtract:

a - b

Element-wise product:

a \odot b

Scale

a

by 3:

3a