Course exam query: dot product for two vectors

Question

How can we multipy two vectors here with same dimensions? shouldnt the column of first be same as row count of the second? what am i missing here?

first vector here is 2 x 1 so is the second vector 2 x 1 then how can they be multiplied ?

Answer 1

Hey Prashant,

Thank you for reaching out.

By applying the dot-product formula

you obtain the result that c) is a true statement.

Kind regards,

365 Hristina

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