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Grade: 11
        The points (a,0) , (0,b) and (1,1) are collinear,If m+n =1, where m and n respectively are-        (a) b,-a (b) a,-b (c) 1/a,1/b (d) -1/a,-1/b
2 years ago

Answers : (1)

Arun
23742 Points
							
Dear Piyush
 
If these three points are collinear then area of triangle should be zero.
 
Hence after this condition
We get 
1/a + 1/b = 1
Hence when comparing with m+ n = 1
Then
m = 1/a , n = 1/b 
 
Regards
Arun (askIITians forum expert)
2 years ago
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