[" Direction ratio of two lines "],[" are,"a,b,c" and "(1)/(bc),(1)/(ca),(1)/(ab)],[" The lines are "]

Direction ratios of two lines are a ,b ,c and 1/(bc) ,1/(ca) ,1/(ab) Then the lines are ______.

Direction ratios of two lines are a,b,c and 1/bc,1/ca,1/ab. Then the lines are

Direction ratios of two lines are a ,b ,c a n d1//b c ,1//c a ,1//a bdot Then the lines are ______.

Direction ratios of two lines are a ,b ,ca n d1//b c ,1//c a ,1//a bdot Then the lines are ______.

Direction ratios of two lines are a ,b ,ca n d1//b c ,1//c a ,1//a bdot Then the lines are ______.

Direction ratios of two lines are a ,b ,ca n d1//b c ,1//c a ,1//a bdot Then the lines are ______.

If a,b,c are in A.P then a+(1)/(bc),b+(1)/(ca),c+(1)/(ab) are in

The direction ratios of two lines AB, AC are 1, -1, -1 and 2, -1, 1. The direction ratios of the normal to the plane ABC are