Answer :


To find : Direction cosines of the y- axis


Formula used : If a line makes angles αo, βo and γo with the positive directions of x-axis, y-axis and z-axis respectively. then direction cosines are given by , ,


y-axis makes 90 o with the x and z axes


α = 90o, β = 0 o and γ = 90 o


Direction cosines of the line is


, ,


0, 1, 0


Direction cosines of the line is 0, 1 , 0


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