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Work Done as Dot Product

If the vector...

Question

If the vectors $3^i - 6^j + 3^k a n d 2^i - 4^j + μ^k$ are parallel , then α =

A

2/3

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B

3/2

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C

3/4

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D

4/3

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Solution

The correct option is A
2/3

$\frac{3}{2} = \frac{- 6}{- 4} = \frac{1}{α} \Rightarrow α = \frac{2}{3}$

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