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Vector Addition

Commutative l...

Question

Commutative law states that

\to a - \to b = \to b \to a

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\to a + \to b = \to b - \to a

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\to a + \to b = \to b + \to a

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None of the above

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Solution

The correct option is D $\to a + \to b = \to b + \to a$
$a + b = b + a$ and $a b = b a$
These laws says that any finite sum or product is unaltered by reordering its terms or factors.
Correct option is $C$ $\to a + \to b = \to b + \to a$

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(\to a + \to b) \times (\to a - \to b) + (\to b + \to c) \times (\to b - \to c) + (\to c + \to a) \times (\to c - \to a) =

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