A Vectors Question

[Tonny]

Can anyone please, with better understanding of vectors than me help me solve this ? It is really confusing.  I am a Comp Sci student and these Math modules are killing me.

[greenmax]

13 hours ago, Tonny said:

I am a Comp Sci student and these Math modules are killing me.

Ask your teacher for more help on the matter, or go to your guidence counsellor.

[SpaceGhostC2C]

It's a system of equations. The first one defines z in terms of x and y. The second one requires to apply the definition of orthogonality to z and y. The last one is yet another equation with the same variables, and you have to substitute some of the previous ones to show it holds, possibly applying the definition of unit vector along the way.

 

It is unnecessarily notation-heavy, though.

[greenmax]

Makes me wonder what class that is in terms of hierchy in the math tree.