A (1,1) and b(2,-3) are two points and d is a point on ab produced such that ad =3ab. Find the coordinates of d
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Given :
Co-ordinates of A :
= ( 1,1)
Co -ordinates of B :
= (2,-3)
D is a point on AB dividing it externally such that :
ad = 3ab
To Find :
Co-ordinates of D = ?
Solution :
∴It is a case of external division and the given ratio ;
AD:AB= 3:1 ( say m:n )
Now the X co-ordinate of D will be :
And the y coordinate of D will be :
So co-ordinates of D are
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