Home
Class 12
MATHS
If a line makes angles 90^(@),60^(@) and...

If a line makes angles `90^(@),60^(@)` and `30^(@)` with the positive direction of x,y and z-axis reapectively, then direction cosines are

A

`lt1,1/2,(sqrt(3))/(2)gt`

B

`lt0,(1)/(2),(sqrt(3))/(2)gt`

C

`lt0,(-1)/(2),(sqrt(3))/(2)gt`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    BETTER CHOICE PUBLICATION|Exercise PREVIOUS YEARS BOARD.S QUESTION FOR PRACTICE |60 Videos

  • THREE DIMENSIONAL GEOMETRY

    BETTER CHOICE PUBLICATION|Exercise ASSIGNMENT MOST IMPORTANT QUESTIONS FOR PRACTICE (SECTION VIII) Long Answer Type Questions |24 Videos

  • RELATIONS AND FUNCTIONS

    BETTER CHOICE PUBLICATION|Exercise PREVIOUS YEARS BOARD.S QUESTIONS FOR PRACTICE |43 Videos

  • VECTOR ALGEBRA

    BETTER CHOICE PUBLICATION|Exercise PREVIOUS YEARS BOARD.S QUESTIONS FOR PRACTICE (MCQ)|46 Videos

Similar Questions

Explore conceptually related problems

If a line makes angle 90^o, 60^o, 30^o with the positive direction of x, y and z-axis respectively, find its direction cosines.

If a line makes an angles of 30^@ , 60^@ , 90^@ with the positive direction of x,y,z axis respectively, then find its direction cosines.

If a line makes angles 90^@ , 135^@ and 45^@ with positive direction of X, Y and Z axis respectively, then its direction-cosines are

If a line makes angles of 90^@,60^@ and 30^@ with the positive x, y and z axis respectively, find its direction-cosines.

If a line makes angles of 90^@,60^@ and 30^@ with the positive x, y and z axis respectively, find its direction-cosines.

If alpha, beta, gamma are the angles that a line makes with the positive direction of x, y, z axis repectively, then the direction cosines of the line are:

Find the direction cosines of x, y and z-axis.