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Pick a topic and practice with clear explanations.

Engineering

Q.15. Let $\hat{u}$ and $\hat{v}$ be unit vectors inclined at an acute angle such that $|\hat{u} \times \hat{v}| = \frac{\sqrt{3}}{2}$ . If $\vec{A} = \lambda\hat{u} + 2\hat{v} + (\hat{u} \times \hat{v})$ . Then $\lambda$ is equal to :

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