If `cos alpha, cos beta, cos gamma` are the direction cosine of a line, then find the value of `cos^2 alpha+(cos beta+singamma)(cos beta-sin^2 gamma.)`

If cos alpha , cos beta, cos gamma are the direction-cosines of a line, then the value of sin^2alpha + sin^2 beta + sin^2gamma =

If cos alpha, cos beta, cos gamma are the direction cosines of a line then the value of sin^(2) alpha + sin^(2) beta + sin^(2) gamma is__________

If cos α , cos β , cos γ are the direction-cosines of a line, then the value of cos^(2) alpha +cos^(2) beta +cos^(2) gamma is _____ .

Statement 1: If cos alpha,cos beta, and cos gamma are the direction cosines of any line segment,then cos^(2)alpha+cos^(2)beta+cos^(2)gamma=1. Statement 2: If cos alpha,cos beta,and cos gamma are the direction cosines of any line segment,then cos2 alpha+cos2 beta+cos2 gamma=1

If alpha,beta ,gamma are direction angles of a line , then cos 2alpha + cos 2beta + cos 2 gamma =

If alpha, beta , gamma are angles of a triangle then the value of (sin^(2) alpha + sin ^(2) beta+sin ^(2) gamma-2 cos alpha cos beta cos gamma) is-

If cos alpha, cos beta, gamma are direciton cosines then cos 2 alpha + cos 2 beta + cos 2 gamma = ................