Home
Class 11
MATHS
If a line makes angles alpha, beta, lamb...

If a line makes angles `alpha, beta, lambda,delta` with the four diagonals of a cube, then show that `cos^(2) alpha+cos^(2) beta + cos^(2)lambda+cos^(2)delta=(4)/(3)`.

Promotional Banner

Topper's Solved these Questions

  • PRODUCT OF VECTORS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE 5(b) I|14 Videos

  • PRODUCT OF VECTORS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE 5(b) II|11 Videos

  • PRODUCT OF VECTORS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE 5(a) II|5 Videos

  • PAIR OF STRAIGHT LINES

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE - 4(c) III. |3 Videos

  • PROPERTIES OF TRIANGLES

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise TEXTUAL EXERCISES ( EXERCISE - 10(b) ) III.|11 Videos

Similar Questions

Explore conceptually related problems

If a line makes angles alpha,beta,lambda,delta with the 4 diagonals of a cube then sin^(2) alpha + sin^(2)beta+sin^(2)lambda+sin^(2)delta

If a line makes angles alpha,beta,lambda with the coordinate axes vec(OX),vec(OY),vec(OZ) find the value of cos 2alpha +cos2beta + cos 2lambda ,