Applet 7.3 Distribution law of Inner Product |
The Distribution law of inner product states that :
|<u + v, w>| =
|<u, w>| + |<v, w>|
Refer the figure on right Let u = , v = , and w = So, u + v = Referring the figure on the right, we observe that |<u + v, w>| = Area of rectangle OPHC' |<u, w>| = Area of rectangle OEDC' |<v, w>| = Area of rectangle OFGC' Now as area of OPHC' = area of OEDC' + area of OFGC' (which can be checked with the help of the applet below using the Check button) |<u + v, w>| = |<u, w>| + |<v, w>| |
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