Q4 (i) If the lines

x-1 / -3

=

y-2 / 2k

=

z-3 / 2

and

3x-1 / 3k

=

y-1 / 1

=

z-6 / -5

are perpendicular, then find the value of k.
(ii) Find the value of k so that the lines x = -y = kz and x-2 = 2y + 1 = -z+1 are perpendicular to each other.

Solution

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