Give a vector in R 3 {\displaystyle \mathbb {R} ^{3}} that makes an angle of π 4 {\displaystyle {\frac {\pi }{4}}} radians with the vector v = [ 3 , 1 , 5 ] . {\displaystyle {\mathbf {v}}=[3,1,5].} Describe briefly the procedure you used to get your answer.
![{\displaystyle {\mathbf {v}}=[3,1,5].}](https://wiki.ubc.ca/api/rest_v1/media/math/render/svg/8e1bd25171c2191c0c345270e31cb0af4af3751a)