If a line makes angles `alpha,beta,gamma` with the positive direction of coordinate axes, then write the value of `sin^2alpha+sin^2beta+sin^2gammadot`

If a line makes angles alpha,beta,gamma with the positive direction of coordinate axes,then write the value of sin^(2)alpha+sin^(2)beta+sin^(2)gamma

If a line makes angles alpha, beta, gamma when the positive direction of coordinates axes, then write the value of sin^(2) alpha + sin^(2) beta + sin^(2) gamma .

If a line makes angles alpha,beta,gamma respectively with positive directions of the coordinate axes, then the value of cos^(2)alpha+cos^(2)beta+cos^(2)gamma=1 .