The axial angles in ......... crystal system are `alpha ne beta ne gamma ne 90^(@)`.

The unit cell with crystallographic dimensions a=b ne c, alpha=beta=gamma=90^(@) is

If alpha, beta, gamma be any three arbitrary angles then cos alpha, cos beta, cos gamma can always be considered as the direction cosines of a line.

Obtain an exapression for the magnutude of the position vector of a point whose co. oridinates are ( alpha, beta and gamma ).

The crystal system of a compound with unit cell dimension a = 0.387, b=0.387 and c= 04 nm and alpha = beta = 90^(@) and gamma = 120^(@) is

If alpha,beta,gamma be direction angles of a line, what is the value of sin^2alpha+sin^2beta+sin^2gamma .

Obtain an expression for the magnitude of the position vector of a point whose coordinates are (alpha , beta , gamma) .

If the direction angles of a line are alpha=30^@ and beta=60^@ , find the other direction angle gamma