Find the dimension of the subspace of all vectors in set of real numbers r superscript 4ℝ4 whose firstfirst and thirdthird entries are equal.

The subspace has dimension 3.

Intuitively, you can think that you're removing one degree of freedom from . In fact, this space is generated by the following span:

Since the first and third coordinate must be the same, we have . So, the span becomes

which is the same as

And so you can see that the space is generated by three vectors.

-50/3

step-by-step explanation:

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah