Question

the dual space of R'n is

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Answer 1

the space of rows of n real numbers.

Step-by-step explanation:

in particular,Rn can be interpreted as the space of the columns of n real numbers, it's dual space is typically written as the space of rows of n real numbers. Such a row acts on as a linear functional by ordinary matrix multiplication , this is because a functional maps every n-vector x into a real number y