CBSE Class 11-science Answered
introduction to three dimensional geometry
Asked by gazalbhatnagar | 06 Nov, 2008, 11:11: AM
Expert Answer
Let P(x,y,z)
Given PA +PB =10
i.e PA = 10 - PB
Squaring both sides ,
PA2 = (10 - PB)2 =100 + PB2 - 20PB
(x-4)2 + y 2 + z 2 = (x +4)2 + y2 + z 2 -20
[ ((x +4)2 + y2 + z 2 )
simplifying , we get
4x + 25=5 [ ((x +4)2 + y2 + z 2 )
Square both sides again and simplify
Answered by | 06 Nov, 2008, 11:53: AM
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