The direction ratios of the line segment joining (P(x_1,y_1,z_1) ) an – McqOptions

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1.	The direction ratios of the line segment joining (P(x_1,y_1,z_1) ) and (Q(x_2,y_2,z_2) ) is given by _______, ____________ and __________
A.	(x_2+x_1,y_2+y_1,z_2+z_1 )
B.	(x_2-x_1,y_2+y_1,z_2-z_1 )
C.	(x_2-x_1,y_2-y_1,z_2-z_1 )
D.	(x_2+x_1,y_2-y_1,z_2+z_1 )
Answer» D. (x_2+x_1,y_2-y_1,z_2+z_1 )

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