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Asked by  | 15th Jan, 2010, 08:57: AM

Expert Answer:

Dear Student

Let P( p,p)  since it is on y=x line

PA2=   (p-3)2+(p-4)2

PB2= (p-7)2+(p-13)2.

  (p-3)2+(p-4)2  X(p-7)2+(p-13)2. =4p2 -54p +243

tominimise it

Take derivative wrt  p  and equate it to '0'==>  8p -54=0==> p=6.75

P(6.75, 6.75)

Regards

Team

Topperlearning

 

Answered by  | 15th Jan, 2010, 10:11: AM

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