ব্যবহারকারী:AstroWizard/খেলাঘর

$(a_{x},\ a_{y},\ a_{z})\times (b_{x},\ b_{y},\ b_{z})=(a_{y}b_{z}-a_{z}b_{y}\ ,a_{x}b_{z}-a_{z}b_{x}\ ,a_{x}b_{y}-a_{y}b_{x})$