Question):- 5. If the lines are at the right angle, then find the value of k.
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https://www.meritnation.com/ask-answer/question/find-k-so-that-the-lines-1-2x-3-y-2-2k-z-3-2-a/three-dimensional-geometry/11681439
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https://www.meritnation.com/ask-answer/question/find-k-so-that-the-lines-1-2x-3-y-2-2k-z-3-2-a/three-dimensional-geometry/11681439
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