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The co -ordinates of point P on the line 2x-y+5=0 such that |PA-PB| is maximum where A is(4,-2) and B is (2,-4) will be a)11,27 b)-11,-17 c)-11,17 d)0,5

The co -ordinates of point P on the line 2x-y+5=0 such that |PA-PB| is maximum where A is(4,-2) and B is (2,-4) will be a)11,27 b)-11,-17 c)-11,17 d)0,5

Grade:11

1 Answers

Arun
25750 Points
6 years ago
Dear student
 
let the point P = (x, 2x+5)
 
now Find PA and PB
 
Now calculate PA – PB
then find maxima of PA – PB by differentiating
 
you will get your answer
 
 
Regards
Arun (askIITians forum expert)

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