If $\left| {\overrightarrow A \times \overrightarrow B } \right| = \sqrt 3 \overrightarrow A .\overrightarrow B $ then the value of $\left| {\overrightarrow A + \overrightarrow B } \right|$ is

Question

(A² + b² + AB)^1/2

${\left( {{A^2} + {B^2} + {{AB} \over {\sqrt 3 }}} \right)^{1/2}}$

A + B

(A² + B² + ${\sqrt 3 }$AB)^1/2.

Solution

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