The function < , > : R^2× R^2→ R : <(x1), (y1)>
<(X2),(y2)>= x1^2+x2^2 define inner product over R^2
True or false with full explanation
Solution:
Given:
To check whether it is defined as an inner product over or not.
For that we check the following properties:
(a) Linearity: .
(b) Symmetric Property: .
(c) Positive Definite Property: For any ; and if and only if .
Checking for linearity:
Consider
Consider
Since they are equal, linearity is satisfied.
Checking for Symmetric:
Consider
Then
Since they are equal, symmetric property is satisfied.
Checking for positive definite property:
for any value of
Also, only when
Hence, positive definite property is satisfied.
Thus, we can say that given relation is inner product.
Final answer - True.
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