Answer :
Given : A line which passes through the point having position vector
and is in the direction of the vector
To find : cartesian equations of a line
Formula used : If a line which passes through the point having position vector
p + q
+ r
and is in the direction of the vector l
+ m
+ n
then its Cartesian
equation is given by
=
=
A line which passes through the point having position vector
and is in the direction of the vector
Here l = 1 , m = 2 , n = -1 and p = 2 , q = -1 , r = 4
=
=
=
=
The Cartesian equation of a line which passes through the point having
position vector and is in the direction of the vector
is
=
=
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