Physics XI Content
COMMUTATIVE LAW FOR DOT PRODUCT
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COMMUTATIVE LAW
FOR DOT PRODUCT |
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This law states that : | |||
“The scalar product of two vectors
![]() ![]() of vector ![]() ![]() ![]() |
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Consider two vectors ![]() ![]() |
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where
![]() ![]() ![]() |
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Similarly, | |||
Where ![]() ![]() ![]() |
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Since | |||
This shows that the dot product of two vectors does not chanfe with the change in the order of the vectors to be multiplied. This fact is known as the commutative of dot product. |