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Vector Triple Product

The dot produ...

Question

The dot product of vectors $\to A = 4^i + 3^j - 2^k$ and $\to B = 2^i -^j + 4^k$ is :

A

19 units

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B

3 units

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C

16 units

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D

-3 units

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Solution

The correct option is D -3 units
$\to A \cdot \to B = 8 - 3 - 8 = - 3$ units

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Similar questions

Q. Find a unit vector perpendicular to the vectors

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

\to B = - 2^i +^j - 2^k

Q. The unit vector perpendicular to the plane containing

\to A, \to B

\to A = 4^i -^j -^k

\to B = 4^i +^j - 4^k

\to a = 2^i + 3^j - 4^k, \to b =^i +^j +^k

\to c = 4^i + 3^k

| \to a \times (\to b \times \to c) | =

Q. The angle between two vectors

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

\to B = - 8^i - 6^j + 4^k

Q. The dot products of a vector with the vectors

(^i +^j - 3^k), (^i + 3^j - 2^k)

(2^i +^j + 4^k)

0, 5, 8

respectively. Find the vector.

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