12th Class Mathematics Sequence & Series

  • question_answer 1)
     If the lines             perpendicular, then find the value of K.  

    Answer:

    Direction ratios of line             Direction ratios of line  are 3K, 1, ?5.       It is given that lines are perpendicular to each other so       (?3) × 3K + (2K) × 1 + 2 × (5) = 0                                


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