Class 12 Three Dimensional Geometry · Mcq Single Correct1 Marksdirection_cosines Class 12 Maths · Three Dimensional Geometry · Mcq Single Correct #4 Find direction cosines of (x−1)/2=(1−y)/3=(2z−1)/12. (A) (2,3,6)/7(B) (2,−3,12)/√157(C) (2,−3,−6)/7(D) (2,−3,6)/7