Show that the vector ortha b=b-proja b is orthogonal to a. (It is called an orthogonal projection of b.)

Leave a tip for good service: https://paypal.me/jjthetutor

Student Solution Manuals: https://amzn.to/2WZrFnD

More help via http://jjthetutor.com

Download my eBooks via http://payhip.com/jjthetutor,

paperback via http://amazon.com/author/jjthetutor.