If a line makes angles `alpha, beta, gamma, delta` with the diafonals of a cubes then the value of ``9(cos 2alpha + cos 2beta + cos2gamma`
`+ cos 2delta)^(2)` equals ….......

If a line makes angles alpha, beta, gamma, delta with the diafonals of a cubes then the value of 9(cos 2alpha + cos 2beta + cos2gamma + cos 2 delta )^(2) equals ….......

A line makes angles alpha, beta, gamma, delta with the diagonals of a cube, prove that cos^2alpha + cos^2beta + cos^2gamma + cos^2 delta = 4/3

If the line makes angles alpha, beta, gamma, delta with four diagonals of a cube, then the value of cos^(2) alpha+cos^(2) beta+cos^(2) gamma+cos^(2) delta is equal to m/3 . Find m.

A line makes angles alpha,beta,gamma and delta with the diagonals of a cube, prove that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4/3

A line makes angles alpha, beta, gamma, delta with the four main diagonals of a cube. Prove that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4/3

A line makes angles alpha,beta,gammaa n ddelta with the diagonals of a cube. Show that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4//3.

A line makes angles alpha,beta,gammaa n ddelta with the diagonals of a cube. Show that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4//3.

A line makes angles alpha,beta,gammaa n ddelta with the diagonals of a cube. Show that cos^2alpha+cos^2beta+cos^2gamma+cos^2delta=4//3.