A line makes angles `alpha,beta,gamma` with co-ordinates axes. If `alpha+beta=90^(@)` then `gamma` is equal to

A line makes angles alpha,beta,gamma with the coordinates axes . If alpha+beta=90^@ then gamma is equal to

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

A line makes angles alpha,beta and gamma with the coordinate axes. If alpha+beta=90^0, then find gamma .

A line makes angles alpha,beta and gamma with the coordinate axes. If alpha+beta=90^0, then find gamma .

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

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

A line makes angles alpha,beta,gamma with the coordinate axes. If alpha + beta = pi//2 , then (cos alpha+cosbeta+cosgamma)^(2) is equal to

If a line makes angles alpha,beta,gamma with co-ordinate axes, then cos2alpha+cos 2 beta+cos2gamma=

If a line makes angles alpha ,beta , gamma with the co-ordinates axes, then cos 2alpha +cos 2beta +cos 2gamma is :