21. Determine whether the planes are parallel, perpendicular, or neither. If neither, find the cosine of the angle between them. (a) z+ 4y – 3z =1,–3r+ 6y +7z = 0 (b) 2z = 4y – 1, 3r – 12y + 6z = 1 (c) z+y+z=1,1 – y+ z =1
21. Determine whether the planes are parallel, perpendicular, or neither. If neither, find the cosine of the angle between them. (a) z+ 4y – 3z =1,–3r+ 6y +7z = 0 (b) 2z = 4y – 1, 3r – 12y + 6z = 1 (c) z+y+z=1,1 – y+ z =1
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter7: Conic Sections
Section7.3: Hyperbolas
Problem 1E: A hyperbola is the set of all points in the plane for which the ___ of the distances from two fixed...
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