Theory of Intelligence
11TH•Mathematics•Vectors In Space•Question 2

(ii)

Find a unit vector perpendicular to the plane containing $\mathbf{a}$ and $\mathbf{b}$. Also find sine of the angle between them:

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(ii)

a=−i−j−k\mathbf{a} = -\mathbf{i} - \mathbf{j} - \mathbf{k}, b=2i−3j+4k\mathbf{b} = 2\mathbf{i} - 3\mathbf{j} + 4\mathbf{k}

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