Add [[4,8]]*(2[[1,5,7]])

Problem

[4,8]⋅(2[[*1,5,7*]])

Solution

1. Identify the operation as scalar multiplication of a vector followed by the dot product of two vectors of different dimensions.

2. Multiply the vector [1,5,7] by the scalar 2

2*[1,5,7]=[2,10,14]

3. Determine if the dot product is defined for the vectors [4,8] and [2,10,14]

4. Conclude that the dot product is undefined because the vectors have different dimensions (2 and 3).

Final Answer

[4,8]⋅(2[[*1,5,7*]])=Undefined

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