Let a=i^+j^​+k^ Then,∣a∣=12+12+12​=3​ a are (3​1​,3​1​,3​1​) Now, let a,β , and γ be the angles formed by a with the positive directions of x, y, and z axes.cosα=3​1​,cosβ=3​1​,cosγ=3​1​ Hence, the given vector is equally inclined to axes OX, OY