A line makes angles `alpha, beta, gamma and delta` with the diagonals of a cube, prove that `sin^(2) alpha + sin^(2) beta + sin^(2) gamma + sin^(2) delta = (8)/(3)`.

A line makes the angle alpha, beta , gamma and delta with the diagonals of a cube. The cos^2 alpha + cos^2 beta + cos^2 gamma + cos^2 delta =.............

If a vector makes angles alpha, beta and gamma with OX, OY and OZ respectively, prove that sin^(2)alpha+sin^(2)beta+sin^(2)gamma=2 .

If a line makes angles alpha,beta and gamma with the positive direction of axes then show that, sin^2alpha+sin^2 beta sin^2 gamma=2

cos^(2) alpha +cos^(2) beta +cos^(2) gamma is equal to

If a vector vec(A) make angles alpha , beta and gamma , respectively , with the X , Y and Z axes , then sin^(2) alpha + sin^(2) beta + sin^(2) gamma =

Vector vecP angle alpha,beta and gamma with the x,y and z axes respectively. Then sin^(2)alpha+sin^(2)beta+sin^(2)gamma=

A line marks angles alpha, beta and gamma with the coordinate axes. If (alpha+beta)=90^(@) , then find gamma .

If alpha,beta,gamma be the angles which a line makes with the coordinates axes, then

A line makes an angle alpha,beta and gamma with axes repectively, The values of alpha, beta and gamma are respectively theta, 60^@ and 30^@ then sin theta = .............

If alpha,beta,gamma are the cube roots of p, then for any x,y,z (x alpha + y beta + z gamma)/(x beta + y gamma + z alpha =