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Vector Addition

The value of ...

Question

The value of the sum of two vectors $\to A$ and $\to B$ with \theta as the angle between them is

A

$\sqrt{A^{2} + B^{+} 2 A B c o s θ}$

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B

$\sqrt{A^{2} - B^{2} + 2 A B c o s θ}$

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C

$\sqrt{A^{2} + B^{2} - 2 A B s i n θ}$

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D

$\sqrt{A^{2} + B^{2} + 2 A B s i n θ}$

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Solution

The correct option is A
$\sqrt{A^{2} + B^{+} 2 A B c o s θ}$

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