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 the angles made by a vector with X, Y and Z- axes then sin^(2) alpha + sin^(2) beta + sin^(2) gamma is

A vector makes angles alpha , beta and gamma with the X, Y and Z axes respectively. Find the value of the expression ( sin^2 alpha + sin^2 beta + sin^2 gamma)/( cos^2 alpha + cos ^2 beta + cos^2 gamma)

If the vector -bar(i)+bar(j)-bar(k) bisects the angles between the vector bar(c) and the vector 3bar(i)+4bar(j) , then the unit vector in the direction of bar(c) is

cos alpha + cos beta + cos gamma + cos ( alpha + beta + gamma ) =