Vector Algebra Part 1

→

r

=

^

i

(1+2l)+

^

j

(−1) +

^

k

(l)

→

r

=

^

i

(2+m)+

^

j

(m−1) +

^

k

(−m)
For intersection
1+2l=2+m ...... (i)
−1= m−1 ...... (ii)
l=− m ...... (iii)
from (ii) m = 0
from (iii)l = 0
These values of m and l do not satisfyequation (1)
Hence the two lines do not intersect for anyvalues of l and m.