Early homework is due by 5:00 pm Wednesday.
If you did the early homework, you don't need to turn in problem 6 from section 6.2, problems 5 or 14 from section 6.3, or problems 9 and 19 from section 6.4 on Monday.

Let R=

1 4 7 2 5 8 3 6 9

.

Question 1: Show that the columns of R do not form an orthogonal set.
Question 2: Find an orthogonal basis for the columnspace of R.
Question 3: Find the orthogonal projection of 42e₁ onto the columnspace of R.

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