*Note: Webwork sets for 6.4 and 6.5 are also due on April 27.*

**4, 6**
(Orthogonal set?)

**20**
(Normalize)

**24**
(True or False, and justify.)

**35**
(Show columns are orthogonal.)
You may copy and paste this:

[[-6,-3,6,1], [-1,2,1,-6], [3,6,3,-2], [6,-3,6,-1], [2,-1,2,3], [-3,6,3,2], [-2,-1,2,-3], [1,2,1,6]]

Turn in a printout of your computation.

**2**
(Orthogonal decomposition)

**6**
(Orthogonal projection on to plane.)

**12**
(Closest point in subspace.)

**22**
(True or false and justify.)

**26**
(Closest point in Col of matrix in 6.2.35.)

See also Webwork assignment.

**2**
(GS for 2 vectors in R3.)

**18**
(True or false and justify.)

**24**
(Bigger GS exercise.)

**25**
(QR factorization using GS)

Webwork assignment gives numerical examples.

**18**
(True or false and justify.)