IIT JEE , AIEEE Forum - Board Exams - CBSE, ICSE, State Boards , Course Material - 3-D ques. Want a quick reply. PLZ

tarinbansal

Show that the lines (x-1)/2 = (y-2)/3 = (z-3)/4 and (x-4)/5 = (y-1)/2 = z intersect and also find the point of intersection.

PLZ dont do this by any method of competitions. Its a CBSE ques and do it the cbse way.

Rates assured.

nadeemoidu

Let (x-1)/2 = (y-2)/3 = (z-3)/4 = p

and (x-4)/5 = (y-1)/2 = z = q

express x , y, z in terms of p and q. we get 3 equations in 2 variables. Solve the first 2 equations and substitute in the 3rd. If it is true , then they intersect. The value of x,y,z gives the point of intersection.

arpan1

there is one more method

first show that the 2 lines are co-planar and then show that the shortest distance between the 2 lines is zero...

DO RATE ME

paddy.dude

BOTH IDEAS OF NADEEM AND ARPAN R GOOD..........i think arpans idea is much better as it takes less time

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