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`        point B is symmetric to a point A(4,-1) with respect to line y=x then disance of AB is 5√2. Explain???`
3 years ago

venkateshwarrao
17 Points
```							Hi,given pt A(4,-1)=(x`,y`) and slope of given line is m=I implies angle=45°Let B be the symmetry of A,then B=(x`+rcos45°,y`+rsin45°)or(x`-rcos45°,y`-rsin45°)=[4+5√2*1/√2;-1+5√2*1/√2]=(9,4)or(-1,-6)
```
3 years ago
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• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions