If `alpha, beta and gamma` be the angle made by the vector `3bar(i)-6bar(j)+2bar(k)` with the positive direction of the coordinate axes, then find `cos alpha, cos beta, cos gamma`.

If alpha, beta and gamma are the angles made by the vector 3bar(i)-6bar(j)+2bar(k) with the positive directions of the coordinate axes then find cosalpha, cosbeta and cosgamma .

If alpha, beta, gamma are the angles made by a line with the positive directions of the coordinate axes, then sin^(2)alpha+sin^(2)beta+sin^(2)gamma=

If alpha, beta and gamma are angles made by the line with positive direction of X-axis, Y-axis and Z-axis respectively, then find the value of cos2alpha+cos2beta+cos2gamma .

If alpha, beta and gamma are angles made by the line with positive direction of X-axis, Y-axis and Z-axis respectively, then find the value of cos2alpha+cos2beta+cos2gamma .

If alpha, beta and gamma are angles made by the line with positive direction direction of X-axis, Y-axis and Z-axis respectively, then find the value of cos2alpha+cos2beta+cos2gamma .