If the vectors a -2 -3 -4 k- and b -4 - x -8 k- are collinear- the x -A- 8B- 2C- 4D- 6

The correct option is D 6 2/ 4= 3/x=4/ 8⇒ x=6 ...

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Unit Vectors

If the vector...

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If the vectors $\to a = 2^i - 3^j + 4^k a n d \to b = - 4^i + x^j - 8^k$ are collinear, the x =

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Show that the vectors $2^i - 3^j + 4^k a n d - 4^i + 6^j - 8^k$ are collinear.

2^i - 3^j + 4^k

- 4^i + 6^j - 8^k

2^i - 3^j + 4^k a n d - 4^i + 6^j - 8^k

a

2^i - 3^j + 4^k

a^i + 6^j - 8^k

\to A \times \to B

\to A = 2^i + 4^k and \to B = - 3^j

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