a. Show that (u + v) (u + v) = |u| 2 + 2 u
Question:
a. Show that (u + v) • (u + v) = |u|2 + 2 u • v + |v|2.
b. Show that |u + v| • |u + v| = |u|2 + |v|2 if u is orthogonal to v.
c. Show that (u + v) • (u - v) = |u|2 - |v|2.
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Related Book For
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett
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