Question

Find a unit vector u with the same direction as x =<40, 9>.

<4/5,3/5>
<9/41,40/41>
<40/41,9/41>
<40/49,9/49>

Answer 1

<40/41,9/41>

Explanation:

According to Algebra Lab, "To find a unit vector with the same direction as a given vector, we divide by the magnitude of the vector."

Magnitude of <40, 9> is 41

Divide that by the vector is

<40/41,9/41>