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`        If the line 2x + 3y + 4 + k (- x + 2y + 5) = 0 is horizontal, then k = A. 0B. 1C. 2D. 3`
9 months ago

Arun
24497 Points
```							Dear student if this line is horizontally then coefficient of x should be zero. hence 2- k = 0hence k = 2
```
9 months ago
Vikas TU
11138 Points
```							Der student , Where ever horizontal component of line is given then put x =0 , Wherever vertical line is given put y =0 So , here put x =0 2-k =0 k=2 Hope this helps Cheers
```
9 months ago
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• 50 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions