Find a vector of magnitude 3, which is p...

Find a vector of magnitude 3, which is perpendicular to both the vectors `3hat(i) + hat(j) - 4hat(k)` and `6hat(i) + 5hat(j) - 2hat(k)`.

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The correct Answer is:

`2hat(i) - 2hat(j) + hat(k)`

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