∣∣xyzv1v2v3w1w2w3∣∣ ∣∣=x∣∣∣v2v3w2w3∣∣∣−y∣∣∣v1v3w1w3∣∣∣+z∣∣∣v1v2w1w2∣∣∣=x(v2w3−w2v3)−y(v1w3−w1v3)+z(v1w2−w1v2)=x(v2w3−w2v3)+y(w ...
確定! 回上一頁