1. $96$
  2. $80$
  3. $42$
  4. $48$

Solution

$\begin{aligned}|\overline{\mathrm{u}} \times \overline{\mathrm{v}}| & =|\overline{\mathrm{u}}||\overline{\mathrm{v}}| \sin \left(150^{\circ}\right) \\ & =8 \times 12 \times \frac{1}{2} \\ & =48\end{aligned}$

Asked in: MHT CET 2023 (12 May Shift 2)

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