ps answer question 98
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/1-find-the-angle-between-the-lines-whose-dcs-are-given-by/three-dimensional-geometry/9348997
Regards
https://www.meritnation.com/ask-answer/question/1-find-the-angle-between-the-lines-whose-dcs-are-given-by/three-dimensional-geometry/9348997
Regards