Page 298 - Elementary_Linear_Algebra_with_Applications_Anton__9_edition
P. 298
Use matrix multiplication to find the orthogonal projection of (2, −5) on
10.
(a) the x-axis
(b) the y-axis
Use matrix multiplication to find the orthogonal projection of (−2, 1, 3) on
11.
(a) the -plane
(b) the -plane
(c) the -plane
Use matrix multiplication to find the image of the vector (3, −4) when it is rotated through an angle of
12.
(a)
(b)
(c)
(d)
Use matrix multiplication to find the image of the vector (−2, 1, 2) if it is rotated
13.
(a) 30° about the x-axis
(b) 45° about the y-axis
(c) 90° about the z-axis
Find the standard matrix for the linear operator that rotates a vector in through an angle of about
14.
(a) the x-axis
(b) the y-axis
