Which of the below given is the correct formula for the distance between two skew lines l1 and l2?

Category: QuestionsWhich of the below given is the correct formula for the distance between two skew lines l1 and l2?
Editor">Editor Staff asked 11 months ago

Which of the below given is the correct formula for the distance between two skew lines l1 and l2?

(a) d=$$\left |\frac{(\vec{b_1}×\vec{b_2}).(a_2-a_1)}{|\vec{b_1}×\vec{b_2}|}\right |$$

(b) 2d=$$\left |\frac{(\vec{b_1}-\vec{b_2}).(a_2-a_1)}{|\vec{b_1}-\vec{b_2}|}\right |$$

(c) d=$$\left |\frac{(\vec{b_1}×\vec{b_2}).(a_2.a_1)}{3|\vec{b_1}×\vec{b_2}|}\right |$$

(d) d^2=$$\left |\frac{(\vec{b_1}×\vec{b_2}).(a_2-a_1)}{|\vec{b_1}-\vec{b_2}|}\right |$$

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I need to ask this question from Three Dimensional Geometry topic in division Three Dimensional Geometry of Mathematics – Class 12
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