$|\vec{A} \times \vec{B}|^{2}=$ নিচের কোনটি?

$A^{2} B^{2}-(\vec{A}. \vec{B})^{2}$

$\mathrm{A}^{2} \mathrm{~B}^{2}-2 \vec{\mathrm{A}} \cdot \vec{\mathrm{B}}$

$A^{2} B^{2}+2 A B \sin \theta$

$\mathrm{A}^{2} \mathrm{~B}^{2}+2 \mathrm{AB} \cos \theta$