Equation Of A Line Through A Given Point And Parallel To A Given Vector

Question 1

Vector form

Answer 1

r=a+ñb

Question 2

Cartesian form here
a,b,c direction ratios
l,m,n direction cosines
A is a point having co ordinates (x1,y1,z1)

Answer 2

x-x1/a or l=y-y1/b or m=z-z1/c or n

Question 3

Cartesian form here
a,b,c direction ratios
l,m,n direction cosines
A is a point having co ordinates (x1,y1,z1)

Answer 3

x-x1/a or l=y-y1/b or m=z-z1/c or n