Q. 105.0( 1 Vote )

If the vectors <s

Answer :

Let us understand that, two more points are said to be collinear if they all lie on a single straight line.


We have the position vectors as,




Since, a and b are collinear. We can draw a relation between and .



Putting the values of and , we get




Comparing L.H.S and R.H.S, we get


2 = –6λ


And –3 = mλ


We need to find the value of λ in order to find m.


We have


2 = –6λ




Putting the value of λ in equation –3 = mλ



m = 3 × 3


m = 9


Thus, the value of m = 9.


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