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\vec{a} = 2 \overset{\land}{i} + 3 \overset{\land}{j} + \overset{\land}{k}

\vec{b} = 3 \overset{\land}{i} + 4 \overset{\land}{j} + \overset{\land}{k}

5 \sqrt{3} বর্গ একক

\frac{5}{2} \sqrt{3} বর্গ একক

10 \sqrt{3} বর্গ একক

\frac{5}{4} \sqrt{3} বর্গ একক

ANS : 2

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