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Question

r1=^i+^j+2^k+λ(3^i2^j+4^k)
r2=2^i+^j+3^k+μ(6^i+4^j8^k)

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Solution

r1 is parallel to 3^i2^j+4^k
r2 is parallel to 6^i+4^j8^k
Hence, r2=2r1
So, the two vectors are parallel and thus the lines are parallel and non- intersecting.

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