MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Vector Equation for Straight Line

Does a line h...

Question

Does a line have both direction ratios and direction cosines??

Open in App

Solution

Solution -: Let me explain this ,
Aline can have two sets of dc's according to its direction. The direction cosines of two parallel lines are always the same. Direction ratios are proportional to direction cosines and hence for a given line, there can be infinitely many direction ratios.It means it is true.

Suggest Corrections

thumbs-up

1

Similar questions

(1, - 2, - 2)

(0, 2, 1)

are direction ratios of two lines, then the direction cosines of a perpendicular to both the lines are

Q. The direction ratios of two lines are 1,-3, 4 and -2, 0, 6. The direction cosines of a line perpendicular to both the lines are

Q. What does direction ratio actually mean???? Because the definition saying that 3 numbers proportional to the direction cosines of a line is called a direction ratio is not So imaginable ...

Q. The direction cosine of a line which is perpendicular to both the lines whose direction ratios are

1, 2, 2

0, 2, 1

Q. Find the direction cosines of a line whose direction ratios are

2, - 6, 3

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Application of Vectors - Lines

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Vector Equation for Straight Line

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon