Question

QUESTION
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If l1,m1,n1 and ĺ2, m2, n2 are the direction cosines of two mutually perpendicular to both of them are m1n2-n1m2, n1l2-l1n2, l1m2-m1l2.







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Harsh & Lavanya ​

Answer 1

Answer:

If L1, M1, N1 And L2, M2, N2 Are the Direction Cosines of Two Mutually Perpendicular Lines, Show that the Direction Cosines of the Line Perpendicular to Both of These Are M1n2 − M2n1, N1l2 − N2l1, L1m2 − L2m1.

Answer 2

Answer:

refer to the attachment