Find the value of p , if the vector i-2j+k, 2i-5j+pk and 5i-9j+4k are coplanar
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/find-the-value-of-p-so-that-the-points-with-position-vector/three-dimensional-geometry/10503725
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https://www.meritnation.com/ask-answer/question/find-the-value-of-p-so-that-the-points-with-position-vector/three-dimensional-geometry/10503725
Regards