2. An inner product on a vector space V is any mapping ,-) V x V R with the following properties: i. Positive definiteness: (x, x) 0 for all x E V and (r, x) 0 if and only if x 0 ii. Symmetry: (x, y) = (y, ) for all r, yE V ii. Linearity: (axby, z) a(x, z)b(y, z) for all r,y, z E V and a, b e R. Show the following a) The dot product y= iyi is an inner product on the vector space R". i-1 To (b) The product (x, y) = x(t)y(t) dt is an inner product on the vector space of functions

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.4: Linear Transformations
Problem 24EQ
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2. An inner product on a vector space V is any mapping ,-) V x V R with the
following properties:
i. Positive definiteness: (x, x)
0 for all x E V and (r, x) 0 if and only if x 0
ii. Symmetry: (x, y)
= (y, ) for all r, yE V
ii. Linearity: (axby, z) a(x, z)b(y, z) for all r,y, z E V and a, b e R.
Show the following
a) The dot product y= iyi is an inner product on the vector space R".
i-1
To
(b) The product (x, y) = x(t)y(t) dt is an inner product on the vector space of
functions
Transcribed Image Text:2. An inner product on a vector space V is any mapping ,-) V x V R with the following properties: i. Positive definiteness: (x, x) 0 for all x E V and (r, x) 0 if and only if x 0 ii. Symmetry: (x, y) = (y, ) for all r, yE V ii. Linearity: (axby, z) a(x, z)b(y, z) for all r,y, z E V and a, b e R. Show the following a) The dot product y= iyi is an inner product on the vector space R". i-1 To (b) The product (x, y) = x(t)y(t) dt is an inner product on the vector space of functions
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